Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
Friction
Balanced and Unbalanced
100

What is Newton's 1st Law?

The law of inertia.

100

What is Newton's 2nd Law?

The law of acceleration.

100

What is Newton's 3rd Law?

The law of Action and Reaction.

100

What is friction?

Friction is the resistance to motion of one object moving relative to another.

100
What causes a balanced force?

If two individual forces are of equal magnitude and opposite direction, then the forces are said to be balanced.

200

What is inertia?

Inertia states that an object remains at rest or continues to move at a constant velocity unless acted upon by an external net force.

200

What is acceleration?

Acceleration is increase in the rate or speed of something.

200

What is action and reaction?

For every action force there is an equal and opposite reaction force.

200

What factors affect friction?

Surface area, mass, type of surface area.

200

What causes an unbalanced force?

When one force is greater than another, the forces are not balanced, they are unbalanced.

300

Is a balanced or unbalanced force needed to change the velocity of an object?

Unbalanced.

300

Fnet=

ma

300

Do forces come in pairs?

Always, yes

300

Friction between bones and joint

Unwanted

300

What type of force causes motion to an object?

Unbalanced

400

True or false, if you throw a ball in space the ball will keep going in the same direction at the same speed.

True, there is no force to change the velocity.
400

An object will accelerate in the direction of the...?

Net force
400

Use the Law of force pairs to explain how a car accelerates.

The cars tires grip the road and push the road backwards. The reaction force moves the car forward, the road pushes the car forward.

400

Is friction always necessary?

No

400

A bike leaning against a tree is an example of?

A balanced force

500

If you are in a moving car and the brakes are suddenly slammed on, what will happen to you.

You will continue to go forward, but your seat belt will hold you back.

500

Is the net force acting on an object equal to the product of its mass and its acceleration?

Yes

500

True or false, When a bug hits a car windshield it splats because the force of the car on the bug is greater than the force of the bug hitting the car.

False, the forces are equal, but the bugs tiny mass results in a huge deceleration. 

500

Friction between tires and the road?

Necessary

500

A skydiver accelerating downwards is an example of ?

An unbalanced force