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Equations
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General Questions
100

What equation calculates the final velocity of an object?

vf=v0+at

100
A motorbike travels east and begins to slow down before a traffic light. In which direction is the motorbikes acceleration going?
What is west?
100
What are the units for displacement?
meters
100
Gravity = ?
What is -9.8m/s2
100
During free fall, what is the acceleration of an object?
What is -9.8m/s2?
200

What equation calculates a change in position while accounting for acceleration?

Δx=v0Δt+1/2aΔt2

200
A person walks 8 km east during the first day, and 5 km west the next day. What is their net displacement?
What is 3 km?
200

What are the units for time?

seconds

200
The speed of something in a particular direction.
What is velocity?
200
An object at rest has an initial velocity of ___.
What is zero?
300
How can I find the change in velocity over time (what equation?)

aavg=Δv/Δt

300
A stomp rocket takes 1.5 seconds to reach its maximum height. What was its initial velocity?
What is 14.7 m/s?
300
What are the units for velocity?
m/s
300
An increase in rate or speed.
What is acceleration?
300
If a car is traveling at a velocity of 5 m/s, and slows to a stop, the final velocity is ____.
What is zero?
400

Which equation(s) do not solve for displacement?

vf=v0+at

400
What is the maximum height of a stomp rocket that has an initial velocity of 14.7 m/s?
What is 11.03m?
400
What are the units for acceleration?
m/s2
400
The net change in position.
What is displacement?
400
The final velocity of a stomp rocket at its peak is = ?
What is 0.
500

What will I use to calculate my average speed?

Change in DISTANCE over change in time

500
An object accelerates from rest, with a constant acceleration of 4.5 m/s2, what will its velocity be after 30s?
What is 135 m/s?
500
What are the units for gravity?
m/s2 (-9.8m/s2 will be accepted as well)
500
What is the difference between displacement and distance?
Distance - how far an object has travelled Displacement - how far an object is out of place
500
An object moves at a constant speed of 5m/s, this means that the object: a. Increases speed 5m/s every second b. Decreases its speed by 5m/s every second c. has a positive acceleration d. moves 5 meters every second
D. Moves 5 meters every second