P1 Energy AQA

Where is Gravitational Potential Energy the greatest in a bungee jump?

• At the middle point

• At the lowest point

• At the highest point

• None of the above

What is the wasted energy output from a TV?

• Sound and Light

• Thermal

• Chemical and Nuclear

• Gravitational and Thermal

Change in thermal energy = mass x specific heat capacity x change in temperature.

The student places 0.5 kg of potato into a pan of water.

During cooking, the temperature of the potato increases from 20 °C to 100 °C

The specific heat capacity of the potato is 3400 J/kg °C

Calculate the change in thermal energy of the potato.

• 200,000 °C

• ΔE = 136 000 (J)

• ΔE = 25 (J)

• 80 °C

Write the equation that links energy transferred, power and time.

• energy transferred = forces x power

• energy transferred = charge x time

• energy transferred = power / time

• energy transferred = power × time

Energy is measured in.....

• kilograms

• metres per second

• Joules

• metres

Energy cannot be created or destroyed, it can only be _________ between the stores

• removed

• dissipated

• transferred

• stored

When a kettle boils, energy is transferred from the electrostatic store to the _________________ energy store.

• chemical

• kinetic

• elastic

• thermal

On a rollercoaster, gravitational energy is transferred to which other two energy stores?

• thermal and electrostatic

• kinetic and chemical

• kinetic and nuclear

• thermal and kinetic

Work done is another way of saying energy is transferred. What are the units of measurement for work done?

• kilograms

• Joules

• Degrees celcius

• Joules per kilogram degrees celcius

What is the equation to calculate kinetic energy?

• kinetic energy = mass x velocity

• kinetic energy = 0.5 x mass x velocity

• kinetic energy = 0.5 x mass x velocity³

• kinetic energy = 0.5 x mass x velocity²