Force and Motion Quiz

Force is...

• A push or pull in a particular direction

• Always occur in pairs

• Both a and b are correct

What is the difference between a push and a pull?

• A push is a force that causes an object to move away from the person who is applying the force

• A pull is a force that causes an object to move closer to the person who is applying the force

• Both answers are correct

Which of the following is an example of a push and an example of a pull?

• Push-pushing a car when it breaks down. Pull-pulling a table or chair closer to you.

• Push-throwing a ball. Pull-kicking a football

• Neither answer is correct

What is motion?

• Movement or a change in position

• A type of force

• Both a and b are correct

Forces always occur in pairs?

• True

• False

What is net force?

• A made-up word

• A combination of all forces acting on an object

An example of a net force is the following: One man pushes on a box with a force of 40 Newtons and another man pushes on the same box with 30 Newtons. The net force is the combination of all the forces acting on this object. In this case the net force is the sum of 40 Newtons and 30 Newtons, which adds up to 70 Newtons.

• True

• False

In Science experiment #8, we measured the force of gravity on an object- its weight- and mass. What is the difference between weight and mass?

• a. There is no difference between them. They are the same thing.

• b. Weight is a measure of gravitational force on an object while mass is the measure of how much matter is in an object.

• c. Both answers are correct.

In science experiment #8, what unit did we measure force in and what unit did we measure mass in?

• Pounds, nanometers

• Newtons, grams

• Watts, grams

What is friction?

• A force that slows down the movement of objects or things sliding past one another

• A force that is created when two materials or surfaces rub against each other

• Both a and b are correct