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20 questions
Which two measurements do you need to determine the speed of an object?
Position and Reference point
Distance and Reference point
Distance and Time
Distance and Velocity
Which of the following is NOT an example of acceleration?
Driving at a steady speed and turning left.
Driving at a steady speed and then slowing down.
A change in velocity from 40km/h to 65 km/h
A car moving at a steady speed of 60 km/hr.
What is motion?
the location of an object
the change in position over time
distance divided by time
the velocity of an object
How do you calculate average acceleration of an object?
Subtract the final velocity from the initial velocity and divide by time
Subtract the initial velocity from the final velocity and divide by time
Add the the two distances and divide by the total time
Divide distance by time
What is acceleration?
A change in position over time.
The rate at which one quantity distance changes compared to another quantity time
The rate at which velocity changes
A measure of how far something moves in a given amount of time.
If a truck travels at a steady velocity, will there be any acceleration?
Yes
No
In a race, Taylor ran the first 50 meters in 20 seconds and the second 50 meters in 12 seconds. What is his average speed during the race? Speed = distance / time
4.54 m / sec
4.55 m /sec
0.22 m / sec
2.5 m / sec
The rate at which velocity changes is called?
Speed
Acceleration
Position
Motion
Calculate the average acceleration of a car given the following information:
Initial velocity 10 m /sec
Final velocity 55 m /sec
The change in velocity took 3 seconds
18.33 meters per second squared
21.67 meters / second squared
15 meters / second squared
If a graph of an objects motion shows a line falling from left to right, the acceleration is ?
Positive
Negative
Zero
If the graph of an objects motion shows a horizontal line, the objects acceleration is
Positive
Negative
Zero
If the graph of an objects motion shows a line rising from left to right, the acceleration is
Positive
Negative
Zero
A car traveling at 65 miles per hour is an example of acceleration.
True
False
An object is in motion if it changes position relative to what?
its speed
a reference point
its total distance
its acceleration
A measure of how far something moves in a given amount of time is called?
distance
acceleration
speed
motion
Speed in a specific direction is called
velocity
motion
speed
position
An object is accelerating if what happens?
Its speed changes
It is slowing down
Its direction changes
All of the above
An increase in velocity is called what type of acceleration?
Positive
Negative
Zero
Acceleration in a circular motion is called
Positive
Negative
Centripetal
Zero
When acceleration and velocity are in opposite directions, speed will
increase
decrease
stay the same
move in a circular direction
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