What is a change in speed or direction / velocity / speed up, slow down, change direction ?
100
Finish the following statement: For every action....
What is "there is an equal and opposite reaction"?
100
When graphing motion (speed) of an object, you put this on the horizontal axis.
What is time?
100
Definition of Force.
What is a push or pull?
200
Forces that are equal in size but opposite in direction are this.
What is balanced forces?
200
Force is equal to this. (Equation for this law)
What is mass x acceleration?
200
Action-reaction forces always act on ____ objects.
What is different?
200
On a speed-time graph, a horizontal line shows the change in speed / or acceleration is this?
What is zero? Speed is constant.
200
Friction always acts in a direction ______to the direction of motion.
What is opposite?
300
If gravity did not affect the path of a horizontally thrown ball, the ball would...
What is travel horizontally or in a straight line?
300
If your speed changes from 10 km/h to 6 km/h, you have this type of acceleration.
What is negative?
300
To keep a sled accelerating downhill, the force of gravity must be greater than the _______ force.
What is frictional?
300
If you ride your bike around the block, returning to the exact point where you started, your displacement is...
What is zero?
300
How hard it is to stop on object
What is Momentum?
400
Newton's first law states that an object remains at rest unless a ---------- force acts on it.
What is unbalanced / net force?
400
Acceleration takes place in the direction of this.
What is the force?
400
Kelly is sitting on a rock. Her weight is an action force. The reaction force is this.
What is the rock pushing up on Kelly?
400
On an acceleration graph, this is on the vertical axis.
What is speed?
400
The force you must overcome to start an object moving.
What is static friction?
500
You push a crate with a force of 10 N to the right and your friend pushes on the crate with a force of 25 N to the left. The net force and direction of the motion is......
What is 15 N to the left.
500
A 300 N force acts on a 25 kg object. The acceleration of the object is this.
What is 12 m/s2 ?
500
Give three examples of Newton's 3rd Law.
What is rocket, balloon, canoe, walking,.....
500
A horizontal line on a distance/time graph means this?
What is the object/person stopped moving?
500
The upward force on an object falling through the air.