Energy Transfer

Front

A battery converts what type of energy to another?

Back

chemical to electrical

Front

Wind turbines and windmills convert what energy to another?

Back

Kinetic to electric

Front

What machine changes electrical energy into light and sound energy?

Back

alarm clock

Front

A measure of the average kinetic energy of the individual particles in matter is:

Back

temperature

Front

If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________

Back

they both have an equal temperature

Front

Energy transfer when a cyclist accelerates down a hill:
Energy in her ..................................... store is transferred to her ............................. store.
Options:
chemical ....... gravitational potential
gravitational potential ........ thermal
gravitational potential ............ kinetic
kinetic .................... thermal

Back

gravitational potential ............ kinetic

Front

A girl of mass 40kg jumps out of a window which is 8m above the ground. What is her kinetic energy just before she hits the ground?

Back

3200J

Front

The rabbit (mass 4.0kg) doubles its speed from 5m/s to 10m/s. What happens to its kinetic energy? Options: halves, doubles, increases x 4, decreases x 4.

Back

increases x 4

Front

A ladybird of mass 5g jumps, reaching a height of 20cm. The energy in its gravitational potential store is

Back

0.01J

Front

A car of mass 800kg has 90kJ of energy in its kinetic store. How fast is it moving?

Back

15.0m/s