force and motion
motion
velocity
speed
acceleration
100
what is force and motion
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
Why can motion seem different to different observers?
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
200
________represensts motion and direction
velocity
200
how fast something is moving
speed is the rate that describes
200
acceleration
when an object velocity change the object is
300
In a swimming race, Miho swam the first 50 m in 52 s. She swam the second 50 m in 40 s. What was Miho’s average speed during the race?
52 s for 50m = 0.98m/s
40 s for 50m = 1.19m/s
0.98 + 1.19s = 2.17 divided by 2 =1.03m/s. for 50m = average speed.
300
reference point
how can you describe motion
300
If a car travels 60km in one hour, what is its average speed?
60 km/h
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
If I travel 50 kilometers per hour, how far will I go in 2 hours?
What is 2 hours to travel 100 kilometers ( use the formula)
400
What is a stationary object such as a tree a street sign or a line on the road
What is refernce point.
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
An elevator traveled 15 floors (150 ft) at a speed of 4.5 m/s. What additional information is needed to determine the velocity of the elevator?
he direction the elevator traveled
400
per second (m/s)
velocity can be stared in meters
500
What information does the graph give you about the speed of the metal ball over time? 
The speed of the ball increases over time
500
graphing motion can be used to show?
The steeper the slope, the faster it goes.
500
An athlete is running a 5-km race at an average speed of 8 km/h. She has to stop to tie her shoe. After tying her shoe, she continues running at 8 km/h. Why would her average speed for the entire race be less than 8 km/h?
The total time she took to complete the race increased because she stopped.
500
What is the speed formula?
speed equal distance over time
500
m/s/s or m/s 2
acceleration is stared in
600
A car travels in a straight line. The driver applies the brakes and comes to an abrupt stop. During braking, what happens to the velocity and acceleration vectors?
They point in opposite directions.
600
T or F A car maintains a constant speed while driving straight ahead. (This is an example of acceleration?)
False.
600
What is the average acceleration of the car?
5 m/s2
600
What are the SI units for acceleration?
m/s2
600
A bus moves on a straight road and then makes a right turn. (T or F) This is acceleration.
True