Unit 2 Review (Energy, Force, & Motion)

Front

What is energy?

Back

Energy is the ability to do work or cause change. It exists in various forms, such as kinetic, potential, thermal, and chemical energy.

Front

What is force?

Back

A force is a push or pull on an object that can cause it to change its velocity (speed or direction).

Front

What is motion?

Back

Motion is the change in position of an object over time. It can be described in terms of speed, direction, and distance.

Front

What is the formula for speed?

Back

Speed = Distance / Time (S = d/t).

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object has due to its motion. It depends on the mass and speed of the object.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. For example, a rock at the top of a hill has gravitational potential energy.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object and remains constant regardless of location. Weight is the force of gravity acting on that mass and can change depending on the gravitational field.

Front

What is a scientific law?

Back

A scientific law is a statement based on repeated experimental observations that describes an aspect of the world. It is universally applicable.

Front

What is an example of a force that acts at a distance?

Back

Gravity is an example of a force that acts at a distance, such as an apple falling from a tree.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can occur due to a change in speed or direction.