Energy Changes Form

Question 1

What is an example of a machine that transforms chemical energy into motion?

Answer 1

An automobile engine.

Question 2

Not all chemical energy in a car engine is converted to kinetic energy; some becomes __________ energy, making the engine hot.

Answer 2

thermal

Question 3

Biomass contains __________ energy, which can be released as chemical compounds break down.

Answer 3

chemical

Question 4

What can thermal energy be transformed into?

Answer 4

Radiant energy.

Question 5

In which direction does thermal energy move?

Answer 5

From something at a higher temperature to something at a lower temperature.

Question 6

How hot can a compost pile get as chemical energy is converted to thermal energy?

Answer 6

It can reach 60°C.