Topic 6 Forces of Motion, Newton's Laws and Combined Forces

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. The more mass an object has, the greater its inertia.

Front

Which object has the greatest inertia: a ping pong ball, a golf ball, a soft ball, or a bowling ball?

Back

A bowling ball has the greatest inertia because it has the most mass.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, slowing it down or stopping it when two surfaces rub against each other.

Front

How does friction affect the motion of a box on different surfaces?

Back

Friction makes it harder to push a box on carpet than on hardwood because carpet has more friction.

Front

What is a force?

Back

A force is a push or pull on an object that can cause it to move, stop, or change direction.

Front

What is the difference between balanced and unbalanced forces?

Back

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

Front

What happens when you apply a greater force to an object?

Back

Applying a greater force to an object will cause it to accelerate more quickly.

Front

What is the net force?

Back

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

Front

What is an example of balanced forces?

Back

An example of balanced forces is a book resting on a table, where the force of gravity is balanced by the support force from the table.

Front

What is an example of unbalanced forces?

Back

An example of unbalanced forces is when a person pushes a shopping cart, causing it to move.