motion and speed
velocity & acceleration
A Crash Course in Safety
Connecting Forces with Motion
Gravity-- A Familiar Force
100
rate in change of position
What is speed?
100
describes the speed and direction of an object's motion
What is velocity?
100
car part which makes a passenger part of the car
What is a seat belt?
100
forces equal in size but opposite in direction
What are balanced forces?
100
force every object in the universe exerts on every other object in the universe
What is gravity?
200
total distance traveled divided by total time of travel
What is average speed?
200
rate of change in velocity
What is acceleration?
200
car part which distributes the force of a crash over a larger portion of the body
What is a seat belt?
200
type of force which always changes the motion of an object
What is a net force?
200
mass and distance between objects
What are factors affecting gravity?
300
necessary piece of information for determining if motion has occurred
What is reference point?
300
amount of time which passes during a change in velocity
What is time interval?
300
It is a law to use this car part when driving or riding in a motorized vehicle.
What is a seat belt?
300
property of an object which affects it inertia
What is mass?
300
measure of the force of gravity on an object's mass
What is weight?
400
type of speed indicated by a speedometer
What is instantaneous speed?
400
acceleration when final velocity is less than initial velocity
What is negative?
400
Which car part increases the amount of time necessary to slow a passenger in a car down?
What is a seat belt?
400
Newton's first law of motion
What is an object at rest remains at rest until acted on by an outside net force?
400
property of an object measured in grams or kilograms
What is mass?
500
a straight line on a speed graph indicates this
What is constant speed?
500
type of acceleration experienced by an object traveling at a constant speed
What is none?
500
experts say this could decrease injuries and increase survival of persons in car wrecks
What is a seat belt?
500
type of surfaces and force push two objects together
What are factors affecting friction?
500
formula for calculating weight
What is weight = mass x acceleration due to gravity?
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