Momentum Quiz Part 2

Explain the concept of the conservation of linear momentum. (2 marks)

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Figure 8 shows a trolley of mass 20 kg, moving at a speed of 2 metres per second (2 m/s). The trolley collides with a stationary toy truck of mass 10 kg.

a. State TWO possible results of this collision.

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Figure 8 shows a trolley of mass 20 kg, moving at a speed of 2 metres per second (2 m/s). The trolley collides with a stationary toy truck of mass 10 kg.

b. Calculate the momentum of the truck if it was moving at a speed of four metres per second (4 m/s) toward the trolley. (1 mark)

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Figure 8 shows a trolley of mass 20 kg, moving at a speed of 2 metres per second (2 m/s). The trolley collides with a stationary toy truck of mass 10 kg.

c. State TWO possible results of the collision between the truck moving at the speed in (b) and the trolley. (2 marks)

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Define the term 'energy' and state the unit of energy. What is the symbol for the unit of energy? (3 marks)

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State the forms of energy present (i) before, (ii) during and (iii) after the trolley collides with the stationary toy truck. (3 marks)

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The toy truck possesses gravitational potential energy. Explain where this energy comes from. (2 marks)

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