Force and Motion

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. Objects with greater mass have greater inertia.

Front

True or False: A force is unbalanced if the net forces acting on the object is zero.

Back

False. A force is unbalanced if the net forces acting on the object are not zero.

Front

What happens to an object when it experiences an unbalanced force?

Back

An object will accelerate in the direction of the unbalanced force.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It occurs when two surfaces come into contact.

Front

Why does a hockey puck slide across ice more easily than on carpet?

Back

The carpet has a stronger friction force than ice, making it harder for the puck to slide.

Front

What is the relationship between mass and inertia?

Back

The greater the mass of an object, the greater its inertia.

Front

What is a net force?

Back

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

Front

What is the effect of balanced forces on an object?

Back

Balanced forces do not change the motion of an object; it remains at rest or continues to move at a constant speed.

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by an unbalanced force.

Front

What is an example of an unbalanced force?

Back

A soccer player kicking a ball is an example of an unbalanced force, as the kick causes the ball to accelerate.