Unit 2 Test

Front

What is mechanical kinetic energy?

Back

Mechanical kinetic energy is the energy that an object possesses due to its motion. It is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

What does the law of conservation of energy state?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What happens to electromagnetic force as the distance between two electromagnets increases?

Back

As the distance between two electromagnets increases, the electromagnetic force decreases.

Front

Where is potential energy highest in a roller coaster?

Back

Potential energy is highest at the top of the first hill in a roller coaster.

Front

What is an incomplete circuit?

Back

An incomplete circuit is a circuit that does not have a complete path for current to flow, preventing the operation of electrical devices.

Front

Define gravitational potential energy.

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is radiant energy?

Back

Radiant energy is the energy of electromagnetic waves, including visible light, infrared, and ultraviolet radiation.

Front

What is the relationship between distance and force in magnetism?

Back

The force between two magnets decreases as the distance between them increases.

Front

What is the formula for calculating kinetic energy?

Back

The formula for calculating kinetic energy is KE = 1/2 mv², where m is mass and v is velocity.

Front

What is the significance of the top of a hill in terms of energy in a roller coaster?

Back

At the top of a hill, a roller coaster has maximum potential energy and minimum kinetic energy.