Force
What has the most friction: rubber, ice, or grass?
Grass
Which vehicle will take more force to stop: a dump truck or regular-sized car
Dump truck
The amount of matter in an object is called its...
Mass
You push a chair across the floor. It gradually slows down and stops. Why did the chair stop moving?
friction from the floor
What scientist came up with the laws of motion? Full name!
Sir Isaac Newton
What is required to change the velocity of an object?
Force
If two soccer balls are at rest and then kicked, one moves 2 meters from its original spot and the other moves 4 meters from its original spot, which one received more force?
The one that moved farther (4 meters)
A push or pull that can cause motion
Force
You are playing pool. You hit the white ball and it hits a solid orange ball that is still. What happens to the white ball and what happens to the orange ball after the collision?
The white ball will stop and the orange ball will start moving in the same direction that the white ball was moving.
What number of Newton's Law does this describe:
An object at rest stays at rest.
An object in motion stays in motion with the same speed and in the same direction UNLESS acted upon by an unbalanced force.
Newton's First Law of Motion
To stop an object, the direction of force must come from:
the opposite direction of the object's motion
It takes more force to slow down your bicycle by 5 mph than to speed it up 5 mph. True or False
False
A force between an object and the surface it is moving over
Friction
A pod hits a space station. The space station is much more massive than the pod. The pod experiences a much stronger force than the station. True/False
False
What number of Newton's Laws of Motion does this describe:
Every action has an equal and opposite reaction.
Newton's Third Law
To increase the speed of an object, the direction of force should best be:
in the same direction of the object's motion
A pink canoe (200kg) and a green canoe (150kg) are crashed into from behind by giant rubber ducks. Both canoes increase their velocity by 3 km/sec. Which ones received MORE force from their rubber duck?
The Pink Canoe
Speed in a particular direction
Velocity
A pod hits a space station. The space station is much more massive than the pod. The pod experiences a much greater change in velocity. True/False
True
To push a more massive object farther and at the same speed as a lighter object, you have to ________ more force.
Exert
To start an object moving, the direction of force must come from:
any direction
An object with less mass collides with an object with more mass. Which object will receive more force?
Neither, they both receive the same amount of force.
Anything that has mass and takes up space
Matter
There is a collision between a bug and a car. The bug experiences a greater change in velocity because...
it has a much smaller mass
Who would require less force to move 10 tiles across the floor in a chair with wheels: Hulk or Tinker Bell?
Tinker Bell