Energy Final 9th grade

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. It depends on the mass of the object and the square of its velocity.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. For example, a ball held at a height has gravitational potential energy.

Front

What is the formula for calculating work?

Back

Work (W) is calculated using the formula W = Fd, where F is the force applied and d is the distance moved in the direction of the force.

Front

At which point in a pendulum's swing is kinetic energy highest?

Back

Kinetic energy is highest at the lowest point of the swing.

Front

What type of energy transformation occurs in a microwave oven?

Back

In a microwave oven, electrical energy is transformed into thermal and electromagnetic energy.

Front

What is the relationship between work, force, and distance?

Back

Work is the product of force and the distance over which it is applied in the direction of the force.

Front

What type of energy does a moving basketball possess?

Back

A moving basketball possesses kinetic energy.

Front

What is the energy transformation in a flashlight?

Back

The energy transformation in a flashlight is from chemical energy (in batteries) to electrical energy to electromagnetic energy (light).

Front

What is the unit of work in the International System of Units (SI)?

Back

The unit of work is the Joule (J).

Front

What is electromagnetic energy?

Back

Electromagnetic energy is a form of energy that is reflected or emitted in the form of electrical and magnetic waves, such as light.