Test Review #1

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another.

Front

What is the net force acting on an object?

Back

The net force is the overall force acting on an object after all the individual forces are combined.

Front

What two factors does gravitational potential energy depend on?

Back

Gravitational potential energy depends on the height and mass of the object.

Front

What is the standard unit of measurement for energy?

Back

The standard unit of measurement for energy is the Joule.

Front

How do you calculate gravitational potential energy (GPE)?

Back

GPE can be calculated using the formula: GPE = mass × gravity × height.

Front

What is the value of gravitational acceleration on Earth?

Back

The value of gravitational acceleration on Earth is approximately 9.8 m/s².

Front

If a 5 kg object is lifted to a height of 3 meters, what is its GPE?

Back

GPE = 5 kg × 9.8 m/s² × 3 m = 147 J.

Front

What is the difference between kinetic energy and potential energy?

Back

Kinetic energy is the energy of motion, while potential energy is stored energy based on an object's position.

Front

What is the formula for kinetic energy?

Back

The formula for kinetic energy is KE = 1/2 × mass × velocity².

Front

What happens to energy in a closed system?

Back

In a closed system, energy is conserved; it can change forms but cannot be created or destroyed.