Forces and Motion

Front

What is velocity?

Back

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

Front

True or false: Changing the direction of an object changes its velocity.

Back

True

Front

What is net force?

Back

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

Front

What unit is used to measure force?

Back

Newton (N) is the unit used to measure force.

Front

What does the equation f=ma represent?

Back

The equation f=ma represents the relationship between force (f), mass (m), and acceleration (a).

Front

If an object has a mass of 10 kg and is accelerating at 2 m/s², what is the force applied?

Back

Force = mass × acceleration = 10 kg × 2 m/s² = 20 N.

Front

What is the relationship between mass and force required to accelerate an object?

Back

The greater the mass of an object, the greater the amount of force needed to make it accelerate.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that results in a change in the motion of an object.

Front

What is a balanced force?

Back

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

Front

What happens to an object at rest when the net force acting on it is zero?

Back

An object at rest will remain at rest if the net force acting on it is zero.