force and motion is newtons first law of motion is that an object will stay at rest or remain in uniform motion unless acted upon by a force
100
motion is change in an object position over time
What is motion
100
velocity is speed in a particular direction
What is velocity
100
measure of the distance traveled per unit of time
What is speed
100
an object can change direction , speed up , or slow down
velocity changes
200
the formula for force and motion is speed equals distance over time
What is the force and motion formula
200
to a person who is standing still and a car is passing by it seems to go by fast , someone in the car moving at the same speed as a car may not notice the motion
Why can motion seem different to different observers
200
represent motion because it describes both speed and position
velocity is a good way to ?
200
how fast something is moving
speed is the rate that describes
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acceleration
when an object velocity change the object is
300
when you are using the formula to calculate speed you are calculating the average speed of an object
What is the speed you calculate for the average speed
300
reference point
how can you describe motion
300
60 km/h
if the speed of an object is 60 km/h what is the velocity
300
know the distance traveled and the time it took an object to travel that distance
to calculate an objects speed you must
300
acceleration is the rate of change in velocity or the change in velocity per unit of time
What is acceleration
400
50 kilometer per hour
What is 2 hours to travel 100 kilometers ( use the formula)
400
stationary object such as a tree a street sign or a line on the road
What is refernce
400
because they are not moving in the same direction
two cars are moving at the same speed but they are not moving at the same velocity why
400
position , direction , and speed
once you have a reference point motion can be defined in terms of
400
per second (m/s)
velocity can be stared in meters
500
most objects do not move
What is the constant unchanging speed
500
graphing motion can be used to represent motion
What is graphing motion
500
velocity equal displacement over time equal x2 minus x1 over t2 minus t1