Forces

Front

What is a force?

Back

A force is the influence that causes an object to undergo a change in speed, direction, or shape.

Front

What are balanced forces?

Back

Balanced forces are forces that are equal in size but opposite in direction, resulting in no change in motion.

Front

What is an example of a balanced force?

Back

An asteroid moving at a constant speed through space.

Front

What is an unbalanced force?

Back

An unbalanced force causes an object to accelerate, change direction, or change shape.

Front

What happens when forces are unbalanced?

Back

The object will accelerate in the direction of the net force.

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, commonly experienced as the force that pulls objects towards the Earth.

Front

What is a push force?

Back

A push force is a force that moves an object away from the source of the force.

Front

What is a pull force?

Back

A pull force is a force that draws an object closer to the source of the force.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, caused by the contact between two surfaces.

Front

What is the direction of gravitational force?

Back

The direction of gravitational force is always downward, towards the center of the Earth.