Exploring Energy Concepts

Front

What is the formula for calculating kinetic energy?

Back

KE = 0.5 * m * v^2

Front

Method of energy transfer when a box feels hot under the Sun?

Back

energy transfer by propagation of electromagnetic waves

Front

Explain the law of conservation of energy.

Back

Energy cannot be created or destroyed, only transferred from one store to another.

Front

In which situation is work not done?

Back

Exerting a great force to push against a wall

Front

Which statement is wrong about the law of conservation of energy?

Back

Energy can be converted from one form to another

Front

List three renewable energy sources.

Back

Solar energy, wind energy, hydroelectric energy

Front

What is the SI unit of power?

Back

Watt (W)

Front

How does kinetic energy change when an object's speed doubles?

Back

Kinetic energy increases by a factor of four.

Front

Describe the relationship between work and energy.

Back

Work is the transfer of energy; doing work increases the energy object's energy store.

Front

What is one advantage of using renewable energy sources?

Back

Reduced environmental impact.