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Definitions
Which Law?
Grab Bag
Units
Math
100

A push or pull one object exerts on another

Force


100

Newton's First Law is also known as the Law of ____.

Inertia

100

F = ma is the formula for this.

Force or weight

100
What unit is force measured in?

Newtons (N)

100
How much force does it take to send a 10 kg bowling ball down the alley with 7 m/s2 acceleration?

70 N

(10*7)

200

The combining of forces when two or more forces act on an object.

Net Force

200
For every action there is an equal and opposite reaction.

3rd Law

200

p=mv is the formula to calculate this.

momentum

200

What unit measures acceleration?

m/s2

200

Oscar pushes a desk left with 10 N of force. Anton pushes back to the right with a 22 N force. What is the net force? 

12 N right

300

Forces that are equal in size and opposite in direction.

Balanced Forces

300

The greater the mass, the greater the force needed to accelerate it.

2nd Law


300

What is acceleration due to gravity?

9.8 m/s2

300

What unit measures mass?

kg

300

Ivy and Haven push on the same side of a closed door with a force of 20 N each. What is the net force?

40 N
400

Forces that are not equal in size and opposite in direction.

Unbalanced forces.

400

A skateboard hits a rock and stops. The skateboarder goes flying off the skateboard. 

1st Law 

400

Weight is also a _____.

Force

400

What is the unit for momentum?

1 kg*m/s

400

What is the momentum of a car with a mass of 4200 kg traveling at a speed of 25 m/s?

105,000 kg*m/s

500

Resistance to motion when two objects are in contact with one another.

Friction.

500

A bicyclist loses control and crashes into a stopped bicycler in front of him. What happens to his momentum? Which law is this?

It is transferred to the stopped bicyclist. The Law of Conservation of Momentum

500

This law states: Any two masses exert an attractive force on each other.

The Law of Universal Gravitation.

500

1N = 1 _____

1 kg*m/s2

500

What is the weight of a 1400 kg car?

13,720 N