Forces
Newton's First
Newton's 2nd
Newton's 3rd
Gravity and Friction
100

When the net forces acting on an object are zero, the forces are __________________.

What is Balanced?

100

Newton's First law is the law of ________________.

What is inertia?

100

According to Newton's 2nd law, force is equal to...

What is the mass of the object times its acceleration?

100

According to Newton's 3rd law, every action force has a _____________ and _____________ reaction force.

What is equal and opposite?

100

This is a measure of the force of gravity on an object

What is weight?

200

An object accelerates when the forces acting on it are ________________________.

What is unbalanced

200
Inertia tells us that an object at rest will _________________________, unless an unbalanced force acts on it

What is stay at rest?

200

If the mass of an object stays the same and you apply a stronger force, what will happen to the acceleration?

What is it will increase?
200

If the force of a rocket's fuel pushes down on the ground, what will be the reaction force?

What is the ground pushing up on the rocket?
200

These are the two factors that affect gravitational force

What are mass and distance?

300

If an object is turning, we know the forces must be _____________________.

What is unbalanced?
300

If the forces acting on a moving object are balanced, it will do this.

What is move at a constant velocity (or move in a straight line at a constant speed)?

300

According to Newton's 2nd law, How will the acceleration of a bowling ball compare to a soccer ball if you kick both of them with the same amount of force?

The acceleration of the bowling ball would be less.

300

If a tennis racquet hits a ball with 200N of force, with how much force does the ball hit the racquet?

What is 200N?

300
Why is a person's weight on Jupiter greater than it is on Earth?

What is The mass of Jupiter is greater

400

The three types of non-contact forces are ....

What are gravity, electric and magnetic

400

How does the mass of an object affect its inertia?

What is the more mass it has the more inertia?

400

What is the force acting on a 100 kg object that accelerates 3m/s2?

What is 300 N

400

If you jump on the Earth and it exerts an equal and opposite force on you, why do you move but Earth doesn't?

What is because your mass is so much less? 

400

Why is gravity on the ISS so low?

What is the distance from Earth is great?
500

If an airplane has greater drag than thrust and greater weight than lift, describe its motion in two dimensions

What is slowing down and landing?

500

How does Newton's first law of motion relate to the importance of wearing a seatbelt

What is your body will continue in motion through the windshield if the car comes to a sudden stop?

500

What happens to the acceleration of an object if the force acting on it remains constant but the mass quintuples?

What is The acceleration would reduce by 1/5

500

If Mrs. Buchanan's Prius collides with a Monster truck, which vehicle exerts a greater force on the other?

What is they exert the same force on each other (equal and opposite)

500

If a person weighs 180lbs on Earth, how much would they weigh on the Moon?

What is 30 lbs?

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