Vocabulary
A push or pull is called what?
What is Force
What does “F” stand for in F = ma?
What is Force
The tendency of an object to resist any change in its motion. Also the nickname for Newton's First Law of Motion.
What is inertia?
This force opposes the motion of objects that move up in the air.
What is gravity?
A book stays on a table until someone pushes it.
A change in the speed of motion is called what?
What is Acceleration
What does “a” stand for?
What is acceleration
It is easier to push a 40kg ball than a 400kg ball. This is an example of Newton’s _____________
Second Law of Motion
True or False: When a basketball is bounced, the action is the upward movement of the ball.
False. Reaction.
A heavier object needs more force to move.
What is Newton's Second Law
What is mass?
What is the amount of matter an object has
A force of 12 N acts on a 3 kg object. What is acceleration?
What is 4 m/s^2
A ball rolling down a hill will continue to roll unless friction or another force stops it. This is an example of Newton’s _____________
First Law of Motion
You are riding a bicycle and it suddenly stops. What happens to you?
You continue to move forward.
A balloon flies forward when air shoots out the back.
What is Newton's Third Law
What is inertia?
Resistance to changes in motion
A 20 kg object accelerates at 8 m/s². What is the force?
160 N
To calculate the force an object exerts, you use this formula.
What is F = ma?
Which law describes what happens when a tablecloth is pulled out from under a setting of china without damaging it?
First Law of Motion
A car stops suddenly and passengers move forward. Explain the law.
What is Newton's First Law (inertia—objects in motion stay in motion)
What is Motion
What is a change in position from a reference point
A 100 kg object has an acceleration of 0.5 m/s². What is the force?
50 N
Releasing a balloon full of air has an equal and opposite reaction. This is an example of Newton’s ________________.
Third Law of Motion
When a bug hits a windshield, which feels the greater force?
What is the SAME force (Third Law—equal and opposite)
A truck and a car collide. The truck experiences less acceleration. Which law explains this and why?
What is Newton's Second Law (greater mass → less acceleration)