Energy changes in a system, and the ways energy is stored before and after such changes

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Question 49
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A student is investigating the physics of a large playground slide. A diagram of the slide is shown below:

Diagram showing a child sliding down a playground slide. The ladder leading up to the top platform is labelled, and a vertical line indicating the 'Vertical height' is shown from the top platform down to the ground. The slide ramp curves downwards to the ground level.

a.

Describe how the vertical height of the slide's platform could be measured accurately.

[2]
b.

A child of mass 48 kg48\text{ kg}48 kg slides down the slide, moving through a vertical height of 2.5 m2.5\text{ m}2.5 m. The gravitational field strength is 9.8 N/kg9.8\text{ N/kg}9.8 N/kg. Calculate the change in gravitational potential energy of the child. Use the equation: gravitational potential energy=mass×gravitational field strength×height\text{gravitational potential energy} = \text{mass} \times \text{gravitational field strength} \times \text{height}gravitational potential energy=mass×gravitational field strength×height

[2]
c.

State three factors that affect the kinetic energy of the child as they reach the bottom of the slide.

[3]

Energy changes in a system, and the ways energy is stored before and after such changes Questions

  1. GCSE
  2. /Physics
  3. /Energy changes in a system, and the ways energy is stored before and after such changes