What is distance divided by time
This happens when two forces act in the same direction.
What is they add together?
What is the acceleration of the ball between 0 and 2 seconds?
1m/s2
Air resistance is a type of this kind of force.
What is friction?
a push or pull
What is a force?
Total distance divided by total time
What is average speed?
mass times velocity
What is Momentum?
A rocket taking off is an example of Newton' __________ Law.
What is Newton's third law?
In an acceleration graph showing speed versus time, a straight line shows the acceleration is______.
What is constant
A carpenter hammering a nail is an example of____?
What is Exerting a Force
When an object 's distance from another object is changing.
What is motion
This depends on an objects mass and the net force acting on the object.
What is acceleration?
The equation for acceleration.

These forces never change the object's motion
What is balanced forces?

What happens to the speed of the ball during the final 2 seconds?
Its speed is constant.
What is Friction?
SI unit for force
What is a Newton?
The rate an object is moving in a given instant.
What is instant speed?
Jim runs 30 kilometers in 2 hours. What is his average speed?
what is 15km/h
The greater the mass of an object, __________
A. the more space it takes up
B. The more balanced it is
C. the greater its inertia
D. the easier the object starts moving
C. the greater its inertia

Does the graph indicate that the ball decelerated?
No
Bike tires on the road as you ride is an example of _____ friction
What is rolling friction?
The speed and direction of an objects motion.
What is velocity?
Speed that does not change.
What is constant speed?
The abbreviation for the unit of acceleration (meters per second per second)
What is m/s2?
If you increase this, you can increase an objects motion.
What is its mass?
How far did the ball move in the final 2 seconds?
6m
Force that causes an object to move in a circle
What is centripetal force?
The tendency of an object to resist change in its motion.
What is inertia?
A change in speed or direction.
What is acceleration?