Mechanics Random Retrieval

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Mechanics Random Retrieval

This quiz contains all the questions in the Mechanics section. The website will pick 10 questions at random.

1 / 10

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?

2 / 10

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.

3 / 10

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

4 / 10

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.

5 / 10

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.

6 / 10

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.

7 / 10

Momentum is a scalar quantity.

8 / 10

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

9 / 10

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.

10 / 10

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

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