Definitions
Forcing things to move
Calculations
Forces
Bonus Material
100
Change in position relative to a reference point
What is motion?
100
One way to reduce friction in vehicles is to use these greasy substances.
What is a lubricant?
100
An object is moving 50m in 8 seconds. What is it's speed?
What is 6.25 m/s?
100
Gravity, Strong and Weak Nuclear, and Electromagnetic are the four __ forces.
What are fundamental?
100
The Greek letter (mu) is used to represent this resistant force
What is friction?
200
The speed of an object in a particular direction.
What is velocity?
200
This occurs when two forces acting on an object are balanced
What is nothing?
200
A vehicle starts from rest and increases velocity to 30m/s in 8 seconds. What is the acceleration?
What is 3.75 m/s2
200
Acceleration is a change in speed or in ____
What is direction?
200
These units are used to measure the intensity of pain caused by oleoresin capsaicin
What is a Scoville unit?
300
An action exerted on a body to change its state of rest or motion
What is a force?
300
The unit for measuring force
What is a Newton?
300
A car slows from 40 m/s to complete stop in 6 seconds. What is the acceleration?
What is -6.67 m/s2
300
Friction opposes motion and generates ___
What is heat?
300
The shape of the earth is actually not round, it is one of these
What is oblate spheroid?
400
The acceleration that occurs in circular motion
What is centripetal acceleration?
400
The two types of friction are __ and __
What is static and kinetic.
400
A vehicle has an acceleration of 7 m/s2 as it moves from 6 m/s to 20 m/s. What is the time required to do this?
What is 2 seconds
400
Acceleration of an object that is decreasing velocity will always be
What is negative?
400
The acceleration due to gravity is ___ m/s2
What is 9.8?
500
The force that resists the initiation of sliding motion between two surfaces that are in contact and at rest.
What is static friction?
500
If a round object rolls over a flat surface the friction is referred to as this , and is generally less than sliding friction.
What is rolling friction?
500
A vehicle travels at 12 km/hr. for 5 minutes. What is the speed in m/s?
What is 40 m/s?
500
Force has both magnitude and ___
What is direction?
500
When stuck on a problem, list the first two things to do...
1. Write the formula. 2. List the portions of the formula.
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