Type of Friction
Forces
Balanced or Unbalanced?
Gravity
Random
100

Name the type of friction. You are pushing against a wall and it won't move.

Static Friction

100
A push or a pull is called a ___________________.
force
100

If the net force equals zero, is it balanced or unbalanced?

balanced

100
A force of attraction between objects that is due to their masses is called ______________________.
gravity
100

If you traveled to the moon...would your weight change, your mass change, or would they both change?

Weight, because gravity is different on the moon.

200

Name the type of friction. You are roller skating down the street.

Rolling Friction

200
Friction is a force that acts _____________ the motion of an object. Choices: a) against b) in the same direction as
against
200
If there is movement, is the force balanced or unbalanced?
unbalanced
200

An object has a mass of 32 kilograms, if we are on the planet Mars, which has a gravitational strenght of 3.73 m/s2, then what is the weight of the object?

Fg = 119.36 (N)

200

Weight is measured in  __________________.

Newtons (N)

300

Name the type of friction. A Quarterback throws a football to his Wide Reciever.

Fluid Friction

300

All forces have ______________ and _________.

size direction

300

The Indigo and the Navy Teams are having a tug of war. The Navy Team pulls 25 N left and the Indigo Team pulls 47 N right. What is the net force? (Remember to give the direction also.) Is it balanced or unbalanced?

22N Right Unbalanced

300
The Law of Universal Gravitation states that the size of the force depends on the ________________ of objects and the ___________________ between them.
mass distance
300

What is the difference between weight and mass?

Mass is the amount of matter in an object, and weight is how gravity effects the mass of an object.

400

Name the type of friction. Sledding down a hill

Sliding Friction

400

The unit used to label force is called ________________.

Newtons

400
You and your brother are moving a couch for your mom. You move the couch at 65 N Right and your brother moves the couch at 60 N Right. What is the net force? (Remember to include a direction in your answer.) Is the net force balanced or unbalanced?
125 N Right Unbalanced
400

What is the gravitational force of this unknown planet, if the object weighs 100N and has a mass of 25 kg?

g = 4m/s2

400

_________________ is the measure of the gravitational force exerted on an object.

Weight

500

You are sliding your desk across the classroom and it creates a loud noise. You don't want it to be so loud the next time. What could you do so that it's easier to move the desk? What type of friction is this?

Add wheels to the desk. Rolling Friction

Pick the desk up and move it. Fluid Friction

500

The combination of forces on an object is called the _____________________________.

Net force

500
You are having a tug of war with your puppy. You are pulling the rope with a force of 37 N Right and your puppy is pulling the rope at 37 N Left. What is the net force. (Remember the direction.) Is it balanced or unbalanced?
O N (No direction is needed.) Balanced
500

Why are we affected by the gravitational force of the Earth and not the gravitational force of a pencil?

We are affected by the gravitational force of the Earth because it is so large. Even though the pencil has gravitational force, it is too small to affect us.

500

If a person weighs 600 Newtons on the Earth. What is his weight on the moon? You weigh nearly 1/6 as much on the moon as you do on Earth.

100 Newtons (Divide by 6 to get your answer)

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