Forces and Energy: Chapter 4- Energy

The ability to do work or cause change is called ________.

• velocity

• energy

• transfer

• friction

Energy is measured in units called ______.

• joules

• pounds

• meters

• horsepower

What type of energy does a spinning turbine have?

• electrical energy

• nuclear energy

• thermal energy

• mechanical energy

An example of something that stores chemical energy is ____________.

• lightening

• a microwave

• a match

• light

What type of energy transformation is taking place when natural gas is used to heat water?

• chemical energy into thermal energy

• thermal energy into mechanical energy

• mechanical energy into electromagnetic energy

• electromagnetic energy into chemical energy

Which of the following has kinetic energy?

• a rock poised for a fall

• an archer’s bow that is drawn back

• a rolling bowling ball

• a car waiting at a red light

Potential energy that depends on height is called _____________.

• kinetic energy.

• gravitational potential energy.

• elastic potential energy.

• mechanical energy.

The rate at which energy is transferred is called __________.

• joules

• power

• time

• velocity

How would you calculate an object’s mechanical energy?

• Add its kinetic and potential energies.

• Multiply its kinetic and potential energies

• Subtract its kinetic energy from its potential energy.

• Subtract its potential energy from its kinetic energy.

Energy stored in the nucleus of an atom is called __________.

• electromagnetic energy

• nuclear energy

• mechanical energy.

• chemical energy.