Motion/Distance
Speed
Forces
Vocabulary
Newtons Laws
100
the location of an object
its position
100
what is speed?
a measure of how far something moves in a given amount of time
100
true/false : only one force acts on an object at a time
false
100
a push or a pull in a specific direction
force
100
Who is the Scientist that determined the laws of motion?
Isaac Newton
200
a change in position over time
motion
200
What is the formula for calculating speed?
Speed= Distance/Time
S=D/T
200
when forces are opposite of each other you ______ to determine the net force
subtract
200
speed in a specific direction
velocity
200
Objects at rest, stay at rest. Objects in motion, stay in motion. Until there is unbalanced force.
Newton's 1st Law
300
An object is in motion if it changes position relative to this.
Reference Point
300
The average speed of a bicycle that traveled a total of 100 meters in 10 minutes.
10 meters per minute
300
true/false : an object moves if the forces are unbalanced
true
300
the rate at which velocity changes
acceleration
300
Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first.
Newton's 3rd Law.
400
If I said, "the Bertha's is down the road from the bridge and across from the high school", what is my reference point?
the bridge and the high school
400
a drag car takes 9.5 s to travel 402 m (1/4 mile), what is his speed?
42.3 m/s
400
what is the formula to calculate force?
Force = mass x acceleration
F=ma
400
the tendency to resist a change in motion
Inertia
400
What is another name for Newton's 1st Law?
The Law of Inertia
500
Explain each graph
A. constant speed
B. returning to "start"
C. at rest
D. decreasing speed to a stop
500
Explain the graphs below
E. accelerating at a constant rate
F. decelerating at a constant rate
G. accelerating at a constant speed (cruise control)
H. stopped "at rest"
500
football players push a 75 kg sled with 150 N of force. What is the acceleration?
2.0 m/s2
500
combination of all forces acting on an object
net force
500
What is Newton's 2nd Law?
The acceleration of an object depends on the mass of the object and the amount of force applied.
F=MxA