Chapter 4 - Work and Energy A

Front

What is the relationship between mass and kinetic energy in a moving object?

Back

The greater the mass of a moving object, the more kinetic energy it has.

Front

What is the unit of power?

Back

The unit of power is the watt.

Front

In what unit is thermal energy measured?

Back

Thermal energy is measured in joules.

Front

What type of energy is stored in chemical bonds?

Back

Chemical potential energy.

Front

What happens to the mechanical energy of a falling object, such as a coconut from a tree?

Back

The mechanical energy remains constant.

Front

Define kinetic energy.

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

What is the formula for calculating kinetic energy?

Back

Kinetic energy (KE) = 1/2 mv², where m is mass and v is velocity.

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state.

Front

What is the difference between kinetic energy and potential energy?

Back

Kinetic energy is energy of motion, while potential energy is stored energy based on position.

Front

What is the principle of conservation of energy?

Back

The total energy in a closed system remains constant; energy can neither be created nor destroyed.