Forces and Motion Concepts

Front

What is a balanced force?

Back

A balanced force occurs when two forces acting on an object 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 does Newton's First Law state?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is the formula for calculating force?

Back

Force = mass * acceleration (F = ma).

Front

If a 20 kg bike accelerates at 9 m/s², what is the force acting upon it?

Back

180 Newtons.

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction.

Front

Give an example of velocity.

Back

A car driving 55 miles per hour south.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object.

Front

What is an unbalanced force?

Back

An unbalanced force occurs when two forces acting on an object are not equal, causing the object to accelerate in the direction of the net force.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, acting parallel to the surfaces in contact.