Mechanics

Select if the following is a scalar or a vector: speed

Select if the following is a scalar or a vector: time

Select if the following is a scalar or a vector: acceleration

Select if the following is a scalar or a vector: force

Select if the following is a scalar or a vector: mass

Select if the following is a scalar or a vector: velocity

Select if the following is a scalar or a vector: length

Select if the following is a scalar or a vector: displacement

Select if the following is a scalar or a vector: momentum

Select if the following is a scalar or a vector: energy

David walks 6 km west then 8 km north. Calculate his displacement.

Achsa runs 1.2 km up at hill with a 40° incline in 438 seconds, calculate her horizontal displacement from her starting position.

A house attached to lots of balloons takes flight at 5.20 ms ^-1 and, due to a cross wind, at an angle of 56° from the horizontal. What would it's vertical speed be assuming there was no wind.

A scuba diver surfaces after a dive. She begins to swim towards the boat at a constant speed of 67 cms^-1 and due to a current in the water this takes her 70 seconds an an angle of 32°. Calculate the time taken if there was no current at the same speed.

A fishing boat travels at 4.6 ms^-1 200° from North towards Whitehaven Harbour Gates, which are 9.4 km away. The boat reaches the harbour, stops and the captain get on her bike and cycles due West from the Harbour Gates at 20 kmph for 25 minutes. Calculate her total displacement.

Which is the SI unit for acceleration?

A sandwich falls from an Air Traffic Control (ATC) tower of height 102 m. How long will it take to hit the ground?

Which is the correct definition for acceleration?

Which is the correct definition for velocity?

A rugby player accelerates steadily from rest at 1.82 ms^-2 for 4 seconds. Calculate their final speed.

A cyclist has a constant negative acceleration as approaches a café. She takes 5.5 seconds to come to a complete stop and travels 26 m. Calculate her initial speed.

A nurse journeys through a hospital ward on a crash call. From a stationary position, he takes 16 seconds to complete the 60 m corridor. Calculate his acceleration.

A diver steps off the end of the 10 m board, free falls, then hits the water before travelling underwater 4 m in 2 seconds. Calculate his speed upon hitting the water. g = 9.81 ms^-2

A paratrooper jumps from an aircraft. Assuming no air resistance, she accelerates due to gravity for 12 seconds before deploying her parachute. Calculate how far she falls from the aircraft until she deploys her parachute.

A climber falls from a rock face and accelerates due to gravity for 3 seconds before his rope stops his fall. What distance did he fall?

Which image sequence best shows the motion of a iPhone being dropped from rest?

A train leaves the station and accelerates at a constant rate, a. After time t its velocity is v. What was the trains velocity at 4t?

A flask of coffee is knocked horizontally from the roof of a car 1.45 m off the ground at 14 ms^-1. Calculate how long it takes to reach the ground. g_Earth = 9.81 ms^-2

A shotput is launched on sports day by the strongest Y7. She throws it at an angle of 30° at a speed of 18 ms^-1, releasing it at a height of 1.9 m. Calculate how far she throws it. g_Earth = 9.81 ms^-2

There are exploration rovers on the Moon. One rover malfunctions and can't be controlled from Earth, it maintains a constant velocity of 8 kmh^-1 in the same direction. After some time it reaches the edge of a crater and goes over the edge, falling 300 m to the ground.

Calculate how long it takes to fall. g_Moon = 1.62 ms^-2

A school decided to go paintballing for staff team building. The Head of Science aims her paintball gun horizontally 1.6 m above ground at the Headteacher, launching the paintball at 92 ms^-1. She hits him on his thigh, 90cm from the ground. Calculate the distance away the Headteacher was stood. g_Earth = 9.81 ms^-1

A bride excitedly throws a bouquet of flowers behind her back at 12 ms^-1 her wedding at an angle of 45°. They are released from a height of 2.1 m and are caught just off the floor by her best man Sam.

Calculate how far away Sam was stood. g_Earth = 9.81 ms^-2

An ill prepared student asks for a pen to write with in class, and the teacher grudgingly lends one out. Instead of walking over to the student, the teacher decides to throw them the pen. The teacher throws the pen at angle of 14° and a speed of 23 ms^-1. Sadly, the teacher misses and the pen continues on it's projected path out the window and takes 5 seconds to hit the car park outside.

Calculate the height different between the point of release and the car park floor. g_Earth = 9.81 ms^-2

Marvin the Martian fires his gun horizontally at Bugs Bunny at a height of 60 cm. It fires at 550 ms^-1, but misses. Calculate how far away from Marvin the shot lands. g_Mars = 3.71 ms^-2

Mount Teide in Tenerife is a dormant volcano and has a peak of 3,718 m, making it the highest point in Spain. If thrown(!) at an angle of 40°, with a velocity of 1.94x10⁴ ms^-1 will a piece of pumice land in Tarfaya (Arabic: طرفاية), Morocco 367 km away? Assume no obstacles and no air resistance. g_Earth = 9.81 ms^-2

Neil Armstrong uses a catapult to horizontally shoot a rock at Buzz Aldrin on the Moon from a height of 2 m. He misses and it lands at Buzz's feed, 20 m from where it was fired.

Calculate the velocity the rock was fired at from the catapult. g_Moon = 1.62 ms^-2

Burj Khalifa (Arabic: برج خليفة‎) is the tallest building in the world stood at 828 m. A family are stood at a observation deck at 555 m and the super strong toddler throws it's rattle away at a velocity of 21 ms^-1 and an angle of 43°.

Calculate how long the rattle takes to hit the ground. g_Earth = 9.81 ms^-2

These graphs show the acceleration of 4 Y9 100 m sprinters. Select the graph which shows student with the greatest acceleration.

A bus is slowing down to stop at a bus stop. Select the graph which shows best describes it's motion.

This graph shows a falling object at its terminal velocity. Calculate its velocity.

Select the statement that best describes what is happening at point X.

Estimate the displacement shown on this velocity-time graph for a Y7 trying to find a classroom during their first week in secondary.

Estimate the velocity between 2 s and 6 s on the graph shown.

Choose the best graph that matches the following scenario: A rugby player accelerates for 3 seconds before making contact and coming to a complete stop. She then accelerates again, until a team mate makes contact with another player and she retreats 10 metres before accelerating forward again.

Select the statement that best describes the motion of object as shown in the graph above.

Select the graph which best fits the motion of a pogo stick being bounced on at regular intervals.

Select the correct graph for these values shown of an animal stalking its prey.

A game of tug of war occurs between the English and Mathematics departments. The English department pull westerly with a force of 120.50 N and the Mathematics department pull easterly with a force of 108.25 N.

Calculate who wins and with what resultant force.

A man of 75 kg has an upward force applied to him of 735.75 N. Does he lift off the ground?

A screaming toddler is trying to run away in a shop and is pulling their fathers arm at an angle of 14° and a force of 235 N. Calculate the horizontal component acting on the father.

A Y7 drags behind them their cooking, PE kit and textbooks behind them with a force of 676 N and an angle of 30°. Calculate the vertical component of the force.

A student moves a table in class by pushing it at an angle of 11° with a force of 200 N. Calculate the vertical component.

A strong woman lifts a car at an angle of 25° and horizontal component of force is 1300 N. Calculate vertical component of the lift.

What is the vertical component if F is applied at θ to the horizontal.

You hang up your GCSE Physics certificate in a frame. The whole thing has a mass of 3.2 kg. Calculate the the tension in the picture frame wire. g = 9.81 ms^-2

The complete Harry Potter collection in paperback has a mass of 3.4 kg. The book collection is placed on a sloping table at angle θ and is at rest. The maximum frictional force between the tabletop and the book collection is 17.7 N.

Calculate the minimum angle at which the book collection will slip. g = 9.81 Nkg^-2.

Four teachers are fighting over the last pack of board pens as shown in the diagram. Calculate the overall resultant force.

The SI unit for a Newton is _______ .

A mass of 3 kg is hung on a forcemeter then dropped from the top of a building 10m high. Select the reading shown on the balance while the mass and the balance are falling together. g = 9.81 ms^-2.

A mug of tea (T_m) is at rest on a table. Select the correct pairing of forces.

Select the best statement for Newton's 1st Law:

Select the missing phrase. "A joiner uses a hammer to hit a nail into wood. When the hammer strikes the nail, _____________

Complete the sentence: "Acceleration is always __________ the resultant force."

Select the best statement for Newton's 3rd Law:

Lauren Steadman set off on her run as part of the paratriathlon at Rio Olympics. Select the best description for her motion.

Select the best statement for Newton's 2nd Law

You can feel your phone in your hand, which Newtonian Law applies, if any?

The International Space Station remains in orbit in space, which Newtonian Law applies, if any?

Chen Ruolin and Liu Huixia won Gold for China at the 2016 Rio Olympics for their synchronised 10 m platform dive. They have a mass difference of 9 kg but hit the water at the same time, which Newtonian Law applies, if any?

Select the best definition for terminal velocity.

Samantha Cristoforetti is an Italian astronaut. We can't find her mass online, so let's assume 60 kg. Where does she weigh the most at?

Select one way to increase the terminal velocity of an object.

These graphs show test results of four different parachute setups, A, B, C and D for the Crew Dragon capsule (the landing portion of SpaceX's Dragon X). Select the parachute setup that has the largest air resistance for the Crew Dragon Capsule.

The table above shows the weight of various aliens on their home planets and their planets g value. Select the alien with the greatest mass.

This graph shows the velocity of a skydiver during a jump. Select the sentence which best describes his motion.

A ball bearing is dropped in various mediums with various densities. Select the graph that shows the ball bearing dropped in a vacuum.

If the resultant force is zero, then an object is at rest.

Complete the sentence: "Frictional forces reduce _________ "

Why do objects (in a medium) not achieve terminal velocity instantly?

Momentum is a scalar quantity.

Sheffield is famous for its snooker. A 170 g white ball is struck with a cue and travels along the snooker table at 12 ms^-1. Calculate it's momentum.

Which of the following quantities has the same unit as the rate of change of momentum?

A 15 N force is applied to a 2.3 kg mass for 8 seconds. Calculate its initial momentum.

Trolley jousting. A Lidl Trolley T_L of mass 21.0 kg, collides on a horizontal frictionless surface with an Aldi Trolley, T_A of mass 22.5 kg. Before the collision T_L was moving at 3.0 ms^-1 and T_A was at rest. They get stuck together, calculate their velocity.

Shoaib Akhtar is the fastest bowler ever. He throws a cricket ball of 163 g at a speed of 161.3km h^-1 which strikes a stationary cricket bat. Calculate the momentum of the ball before the collision.

Physical Disability Rugby League (PDRL) is a format of rugby league for those with impairments. Anthony Seward (Warrington Wolves) has a mass of 70 kg and Sam Zeller (Leeds Rhinos) has a mass of 65 kg. Anthony is at rest and Sam runs towards him at a speed of 8 ms^-1. They move together in the same direction, calculate at what speed.

A bullet of mass 4.02 g is fired at a speed of 940 ms^-1 from an SA-80 rifle. The bullet strikes a block of hardwood of mass 0.512 kg hanging at rest from a long string. The bullet enters the wood and becomes lodged in the block. Calculate the initial speed the wooden block from rest immediately after impact.

A mini-cannon of mass 35.5 kg fires a turnip of mass 1.2 kg. If the turnip leaves the cannon at 214 ms^-1 over 0.3 s, with what force does the mini-cannon recoil?

An Airbus A380 at maximum take-off weight, A_max = 575,000 kg, is taxing along at 37 km h^-1. The pilot isn't paying attention and accidently hits head on another A380 that is completely empty taxing at 40 km h^-1, A_min = 277,145 kg and they rebound off each other in opposite directions. If the collision reduces the speed of A_max to 6 ms^-1 then what speed is A_min now travelling at?

Select the SI unit for Power.

Select the SI unit for Work.

Select the SI unit for Energy.

A bungee jumper of mass 74 kg, falls 68.5 m before the bungee cord begins to stretch. Calculate the gravitational potential energy lost by the bungee jumper in falling 68.5 m. g = 9.81 Nkg^-1.

The Shenzhou (Chinese: 神舟) re-entry capsule has a of mass 7840 kg falling through the atmosphere at a steady velocity of 1.75x10⁴ Mph. Calculate its kinetic energy. g = 9.81 ms^-2, 1 Mile = 1.6 km

A crane lifts a Rolls-Royce Trent 1000 engine into place. The engine has a mass of 5,936 kg and is lifted vertically 10 m by the crane in 12 seconds. Calculate the power of the crane. g = 9.81 Nkg^-2.

The Space Shuttle has a mass of 2.03x10⁶ kg. Upon launch, it has two Solid Rocket Boosters (SRB) providing 12,000 kN of thrust in 123 s. It uses the SRB's to ascend to an altitude of 46 km before jetsoning them. Calculate the Space Shuttle's velocity. Ignore any change in mass due to spent fuel. g = 9.81 ms^-2

The Soyuz (Russian: Сою́з) descent module, of mass 2900 kg, re-enters the atmosphere at an angle of 1.35° to the horizontal, and travels 4200 km until it reaches 10.7 km before deploying it's parachutes. Calculate the change in E_g from the point of atmospheric re-entry to parachute deployment.

The diagram shows a swing 1.43m long. Matilda has a mass of 35 kg and is released from rest at position A by Miss Honey. Calculate the speed of Matilda at position B.

A VW campervan cruises along a straight, flat Autobahn at a speed of 130 kmh^-1. The total resistive force, due to air resistance, is 900 N.

If the overall efficiency of the campervan is 18%, calculate the energy obtained from its fuel during 42 km journey.

The diagram above shows a uniform rod of negligible mass. At which position on the rod is no moment exerted?

A 75 N force is applied to the end of a spanner that is 25 cm long. Calculate the size of the moment?

If an object is on its pivot, what can be said about the moments?

The diagram shows four different combinations of a baby’s mobile with four different weights: 1 N, 2 N, 3 N and 4 N. All the stars are horizontally 50 mm apart. Select the mobile that would be perfectly balanced.

You're down the allotment and are carrying your 65 kg Nana in a 20kg wheelbarrow. Your Nana's and the wheelbarrow's weight acts 60 mm from the centre of the wheel. What force do you need to apply to the end of the handle, 1.2 m from the centre of the wheel, to move your Nana about? g = 9.81 ms^-2

The diagram shows Harry and Dudley on a see-saw. Harry is sat 120 cm away from the pivot. How far away from the pivot must Dudley sit to balance with Harry?

A uniform plank GD has mass 13 kg and length 1.8 m. A mass 6.8 kg is attached to the plank at D. The plank remains balanced due two ropes attached The tension in the rope at G is half the tension of the the rope at A, calculate the tension in the rope at A. g = 9.81 ms^-2

This diagram shows the direction of force for four students pushing on a door at different distances from the hinge, d_pivot. Which student is applying the greatest moment?

A window cleaner leans her ladder against a vertical wall in order to start work. The ladder has a length of 6 m and mass of 15 kg, she places it at an angle of 50°. Calculate the reaction force from the wall at W. g=9.81 ms_-2

A 0.3 m long screwdriver is placed under the circular lid of a paint can and a force of 15 N is applied downward at the end of the screwdriver and the lid opens, pivoting at the opposite side to the screwdriver. The lid has a circumference of 48 cm. Calculate the moment about the open side of the lid.