Newton's Laws
Net Force
Forces
Miscellaneous
Science + Math =
100
The statement “to every action there is an equal and opposite reaction” is which law?
Newton's Third Law
100

Two students are pushing on a box in opposite directions, one with a force of 20 N to the right and the other with a force of 13 N to the left. What is the net force?

7 N to the right.

100
_____ prevents surfaces in contact from sliding past each other. (be specific)
Static friction
100
The upward force exerted on an object falling through air is __________.
air resistance
100

What net force is required to accelerate a car at a rate of 2 m/s2 if the car has a mass of 3,000 kg?

6,000 N

200

Seatbelt stops you from hitting the windshield if you hit the brakes quickly. Which of Newton's Laws does this explain?

1st Law (Inertia)

200
Two people hit on opposite sides of a box, each with 30 N. What is the net force on the box?
0 N
200

A student sits on a chair and the chair does not break.

Normal Force

200

Two equal forces that are pushing on an object in opposite directions are called  _______________.

Unbalanced Forces
200
If a couch has a mass of 250 kg, what is its weight?
2450 N
300
What equation represents Newton’s second law?
F=ma
300

A child pulls back the pocket on a slingshot and shoots a marshmallow at his friend. What type of force does this demonstrate?

Elastic Force

300

Two teams play tug of war and the rope does not break.

Tension Force
300

A person with a weight of 200 pounds on the Earth will weigh _________ on a planet with a stronger pull of gravity.

Less

300
A 4.3 kg box is pushed with a force of 40N. What is the box's acceleration?
4.3 m/s^2
400
_____ relates the net force exerted on an object to its mass and acceleration. (which law?)
Newton's 2nd law.
400

Team A pulls a rope with a force of 20 N in one direction, while Team B pulls the same rope with a force of 35 N in the opposite direction.  What is the net force and who wins?

15 N, Team B

400

A toy car rolls across the floor and slows to a stop.

Rolling Friction

400

It takes less force to push a bike than a motorcycle. Which of Newton's Laws does this demonstrate?

Newton's Second Law

400

Even though she is way ahead of you, Sally switches her car to run on nitrous oxide fuel. The nitrous oxide allows her car to develop 10,000 N of force. What is Sally's acceleration if her car has a mass of 500 kg?

20 m/s^2

500

A real car moving at 10 km/h has more force than a toy car moving at the same rate because:

The real car has a greater mass.

500

Two students push a box with a net force of 40 N, while friction pushes against them with a force of 50 N.  What is the net force? Does the box move?

10 N, No

500
The _____ of an object is different on other planets in the solar system.
weight
500
The force of gravity acting on an object is called… a. Inertia b. Mass c. Weight d. None of the above
c. Weight
500
What’s the mass of an object if it’s weight is 175 N?
17.86 kg
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