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Motion I
Motion Graphs
Motion II
Force
Newton's Laws
100
This happens when an object changes its position or distance from another object
What is motion
100
This type of graph is used to show motion
What is a scatterplot
100
This is the rate at which velocity changes
What is acceleration
100
This is the force that pulls objects towards each other
What is gravity
100
Equal forces acting on an object in opposite directions are described as this
What is balanced
200
An object is in motion if it changes position relative to this
What is a reference point
200
On a motion graph time, the ________ variable is always plotted on the _____________
What is independent variable, and x axis
200
These are two ways object can accelerate
What is change in speed or change in direction
200
These are the two factors that affect gravitational attraction
What are mass and distance
200
This law of motions states "An object at rest stays at rest, and object in motion stays in motion"
What is Newton's 1st Law of Motion
300
The difference between speed and velocity involves this
What is direction
300
On a motion graph, ____________ is the dependent variable and is plotted on the _________ axis
What is position or distance, and y axis
300
This must be known to calculate acceleration per unit of time
What is the change in velocity (final velocity - initial velocity)
300
This happens when gravity is the only force acting on an object
What is free fall
300
The tendency of an object to resist a change in motion is called this
What is inertia
400
What is the speed of a horse that canters 21 meters in 3 seconds
What is 7 m/s
400
On a motion graph, this describes how fast one variable changes in relation to the other variable
What is the slope of the line
400
This is the unit for acceleration
What is m/s/s or m/s^2
400
This does not affect the rate of free fall of an object
What is the mass of the object
400
This law of motions states "The acceleration of an object is equal to the net force put on it by its mass"
What is Newton's 2nd Law of Motion
500
If a runner has a speed of 3 m/s and ran for 50 seconds, how far did she run
What is 150 meters
500
On a motion graph, the fater the motion, the ___________ the slope
What is steeper
500
A car can accelerate from rest to 25 m/s in 9 seconds. What is its acceleration?
What is 2.78 m/s^2
500
This is a force that may oppose free fall
What is air resistance
500
This law of motions states "For every action there is an equal and opposite reaction"
What is Newton's 3rd Law of Motion