8Easy
0/7
a.

Complete the sentence.

Choose answers from the box:

  • chemical
  • elastic potential
  • gravitational potential
  • kinetic

As the spring-loaded mechanical catapult launches the drone, the ___________ energy store in the catapult decreases and the ___________ energy of the drone increases.

[2]
b.

The total mass of the drone is 2.5 kg2.5\text{ kg}2.5 kg. The speed of the drone is 14 m/s14\text{ m/s}14 m/s.

Calculate the kinetic energy of the drone.

Use the equation: kinetic energy=0.5×mass×(speed)2\text{kinetic energy} = 0.5 \times \text{mass} \times (\text{speed})^2kinetic energy=0.5×mass×(speed)2

[2]
c.

When the drone lands on a high-friction stopping pad, friction causes the temperature of the brake pad to increase.

  • The temperature of the brake pad increases by 32∘C32^\circ\text{C}32∘C.
  • The mass of the brake pad is 0.075 kg0.075\text{ kg}0.075 kg.
  • The specific heat capacity of the brake pad material is 840 J/kg∘C840\text{ J/kg}^\circ\text{C}840 J/kg∘C.

Calculate the change in thermal energy of the brake pad.

Use the equation: change in thermal energy=mass×specific heat capacity×temperature change\text{change in thermal energy} = \text{mass} \times \text{specific heat capacity} \times \text{temperature change}change in thermal energy=mass×specific heat capacity×temperature change

[2]
d.

How is the internal energy of the particles in the brake pad affected by the increase in temperature?

Select one:

  • Decreased
  • Increased
  • Not affected
[1]

Internal energy and energy transfers Questions

Practise AQA GCSE Physics Internal energy and energy transfers with exam-style questions for Foundation and Higher tier. 48 questions covering Internal energy, Temperature changes in a system and specific heat capacity, and Changes of state and specific latent heat, matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

PreviousNext

Internal energy and energy transfers Questions

  1. GCSE
  2. /Physics
  3. /Internal energy and energy transfers