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 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

2 / 10

Select the SI unit for Work.

3 / 10

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

4 / 10

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?

5 / 10

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

6 / 10

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

7 / 10

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

8 / 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.

9 / 10

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?

10 / 10

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.

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