Definitions
The specific location of an object
Position
What is the average speed (mi/h) of an object that travels 30 miles in half an hour?
60 m/hr
The primary measure of an object's intertia is what?
Its mass
What book of the Bible is quoted in the Physics Catechism?
Jeremiah
A quantity with only magnitude and no direction
Scalar quantity
What is the overall displacement (mi) of a track runner who runs 4 complete laps around a 1/4 mile track?
0 miles
An object's motion changes when what is applied to the object?
An unbalanced force?
What changes based on location: mass or weight?
Weight
A quantity with magnitude and direction
Vector quantity
What is the overall distance traveled (mi) of a track runner who runs 4 complete laps around a 1/4 mile track?
1 mile
What is the metric unit of force?
Newtons (N)
A football goes from flying through the air at 55 mi/hr when the receiver catches it and runs it into the end zone running 20 mi/hr. Did the football experience a positive acceleration or negative acceleration when it went from air to receiver?
Negative acceleration (it slowed down)
The rate of change of an object's speed
Acceleration
What is the average speed (mi/hr) of a track runner who runs 1 mile in 0.125 hours?
8 mi/hr
What two words describe the reaction to an action force?
Equal and opposite
A 100 N force is applied to a 50 kg box that slides on a frictionless surface. What is the box's acceleration (m/s2)
2 m/s2
The product of mass times acceleration
Force
What is the distance traveled (m) by a Hot Wheels car that is moving at 3 m/s for a total time of 10 s?
30 m
If the acceleration of an object decreases and its mass stays constant, what happened to the force applied to the object?
The applied force decreased
If a 100 N force is applied in the +x direction to a 50 kg box, what force (magnitude and direction) must be applied to keep the box at rest?
100 N in -x direction