What is Motion?
Forces
Friction
Gravity
Potpourri
100
This is the stationary object that is used to detect the motion of another object.
Reference Point
100
Force is a what?
Push or Pull
100
Friction is the force that _____ between ______.
Opposes motion between objects that are touching.
100
Gravity affects everything that contains what?
Mass
100
Calculate Speed: 100 miles traveled, 2 hours time.
50 miles per hour
200
Speed is the combination of what two variables?
Distance and Time
200
What is the net force on a dining room chandelier?
0 N
200
The two factors that affect friction are...
Force and texture
200
What tool is used to measure an objects Mass?
A Balance
200
What tool is used to measure the weight of an object?
A Spring Scale
300
What three variables are used to calculate velocity?
Distance, Time and Direction
300
What is the net force on a chair that is being pushed with 500 N west and 421 N east?
79 N West
300
The two types of friction are...
Kinetic and Static
300
The word gravity is derived from the Greek work gravitas, what does gravitas mean?
Weight
300
Explain why the force of gravity between the Sun and Venus than between the Sun and Earth.
The Sun and Venus are mush closer together.
400
Acceleration is a chance in what?
Velocity
400
What kind of force is required to cause motion?
Unbalanced
400
Name the two types of Kinetic friction, state which has the higher friction and give examples of each.
Rolling, Sliding
400
Weight is another word for what?
Gravitational Force
400
Why is the force of friction greater between a chair that I am sitting in and the floor than a chair that is empty and the floor?
Greater Force
500
List three way a car can accelerate on the highway.
Speed up, slow down, and turn
500
What is the SI unit for force and what does it roughly equal?
Newton, Apple
500
Describe a lubricant and give an example
Reduces friction, oil
500
What are the two parts of Newton's Law of Universal Gravitation?
1. As mass increases Gravity increases. 2. As distance increases, Gravity decreases.
500
What was the speed during the 20-25 minute interval?
.2 km per minute
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