Force and Motion Review

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

What factors affect the amount of friction between two surfaces?

Back

The roughness of the surfaces and the force pressing them together (gravity) are the main factors affecting friction.

Front

What is the relationship between speed and friction?

Back

Generally, the speed of an object does not significantly affect the amount of friction; it is more influenced by surface texture and weight.

Front

What is balanced force?

Back

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

Front

What is unbalanced force?

Back

Unbalanced forces cause an object to start moving, stop moving, or change direction.

Front

How can you determine which object is moving faster?

Back

You can compare the time taken to cover the same distance; the object that takes less time is moving faster.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

What happens to an object in motion when no net force acts on it?

Back

It will continue to move at a constant speed in a straight line.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

How does mass affect inertia?

Back

The greater the mass of an object, the greater its inertia, making it harder to change its motion.