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Key Terms
Key Ideas
Key Terms 2
Key Ideas 2
Old School
100
A push or pull exerted on an object in order to change the motion of the object.
What is force?
100
If a student rides her bike on a straight road and does not speed up or slow down, she is traveling at a _______________ velocity.
What is constant?
100
The combination of all of the forces acting on an object.
What is net force?
100
What is one force always acting on an object?
What is gravity?
100
Matter is ______________________________________.
What is anything that has mass and takes up space?
200
The SI unit for force.
What is a newton
200
A force: a. is expressed in newtons. b. is a push or a pull c. all of the above
What is c. all of the above?
200
What is a force that opposes motion between two surfaces that are in contact?
Friction
200
This type of friction is not moving.
What is static?
200
Who first developed the law of universal gravitation?
Who is Isaac Newton?
300
The speed of an abject in a particular direction.
What is velocity?
300
What is the difference between mass & weight?
Mass never changes, weight changes based on gravity.
300
Force can either be balanced or ________________ .
What is unbalanced?
300
This is how a graph would look displaying average acceleration.
What is a stright line?
300
To find velocity you must have both speed and _______.
What is direction?
400
An object's change in position relative to a reference point.
What is motion?
400
What is the difference between speed and velocity?
Velocity includes direction.
400
The rate at which velocity changes over time.
What is acceleration?
400
This is how average speed would look like on a map.
What is a striaght line?
400
____________ is different on the moon than on the earth.
What is gravity?
500
Speed
What is the distance traveled divided by the time interval during which the motion occurred.
500
This is "moving" friction.
What is Kinetic?
500
How do we find a resultant velocity?
If two objects are traveling together in the same direction add the two velocities, if opposite subtract.
500
Joey jogs to a store 72 m away in a time of 36 s. What is Joey's average speed?
2 m/s
500
When a mover puts furniture on a dolly with wheels, which type of friction is the mover using to make his job easier?
What is a rolling kinetic friction?