Law of Conservation of Energy Practice

Front

At which point is potential energy greatest?

Back

Potential energy is greatest at point W.

Front

What does the amount of thermal energy in an object depend on?

Back

Thermal energy depends on its mass, temperature, and the material it is made from, but not on its colour.

Front

Which law states that energy can be transformed, but cannot be created or destroyed?

Back

The law of conservation of energy.

Front

You use a lamp to change _________ energy into _________ energy.

Back

You use a lamp to change electrical energy into radiant energy.

Front

What are the units for measuring energy?

Back

The units for measuring energy are joules.

Front

Define potential energy.

Back

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

Front

What is kinetic energy?

Back

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

Front

Explain the principle of energy transformation.

Back

Energy transformation is the process of changing energy from one form to another, such as from potential to kinetic energy.

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 thermal energy?

Back

Thermal energy is the total kinetic energy of particles in an object, related to its temperature.