Vocabulary
The attractive or repulsive force exerted by magnetic materials is called what?
Magnetism
If a heavier object accelerates, you need a larger force than to accelerate a lighter one. This is a part of what Newton's law?
Newton's 2nd Law of Motion
Playing tug of war with a rope, and one side falls down. This is what type of force?
Unbalanced Force
100 Newtons
If you have 2 Newtons pushing an object to the right and 2 Newtons pushing that same object simultaneously to the left. What is the Net Force?
0 Newtons
This is a contact force when two surfaces exert on each other when they push or rub against each other.
Friction
For every action, there is an equal and opposite reaction.
What Newton's law is this?
Newton's 3rd Law of Motion
A ball rolls down two ramps. One ramp is made of gravel and the other one is made of plastic. Which force will affect the speed of the ball?
friction
If a baseball bat hits a ball and then that ball lands on the ground and rolls to a stop, what force is causing the ball to stop on the flat baseball field?
friction force
You are pushing a box to the right with a force of 200 Newtons, and your friend is pushing the box back to the left with 400 Newtons. What is the net force created?
200 Newtons
What is it called when you are calculating the combination of all forces acting on an object?
Net Force
The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
This is what Newton's law?
Newton's 2nd Law of Motion
What causes the weight of something to change?
Gravity
Four students are pushing a box across the room. Which direction is the box moved if you have the students pushing right 30 Newtons, left 40 Newtons, up 30 Newtons, and down 30 Newtons?
Left
If you a throwing a ball of 10 Newtons to the right. Which direction should 40 newtons of force be going to increase the ball's speed?
Right
Double Jeopardy!!! Means at the same time.
Simultaneously
An object at rest will stay at rest, and an object in motion will stay in motion with the same speed and in the same direction unless a net external force acts on it.
This is what Newton's law?
Newton's 1st Law of Motion
Pushing a chair, pulling open a door, and sliding your hands together are what type of force?
Contact Force
Why does a ball roll farther on a metal floor than on carpet?
The carpet has more resistance.
You have a force pushing a box 100 Newtons to the right and 200 Newtons pushing to the left. Which way does the box move?
The force that is exerted perpendicular to the surface of an object is called what?
Normal Force
Forces always occur in pairs, and one cannot exist without the other. This explains which Newton's law?
Newton's 3rd Law of Motion
If a ball is rolling up and down a hill, what two types of forces are at work?
Friction and Gravity
You are pushing a box across the floor. Explain why the box begins to move across the floor?
Pushing (applied force) is greater than the friction caused by the sliding against the floor.
Double Jeopardy!!!! You are pushing a box to the right with a force of 500 Newtons, and your friend is pushing the box back to the left with 600 Newtons.
Is this force balanced unbalanced? and Which way does the box move?
Unbalanced and Left