A boy walks 10 meters in 5 seconds...what is his speed?
2 m/s
100
A car goes from rest to 40 m/s in 8 seconds. What is its acceleration?
5 m/s/s
200
What is a scalar?
Just a number - no direction
200
Unit of speed or velocity
meter per second
200
(vf-vi)/t = ?
a (acceleration)
200
A plane flies 50000 m in 5 hours... what is its speed?
10000 m/h or 720 m/s
200
A rocket launches from rest to a speed of 400 m/s. If this takes only 10 seconds, what is its acceleration?
40 m/s/s
300
What is changing position over time called?
Velocity
300
Unit of acceleration
Meter per second per second OR Meter per second squared
300
v*t = ?
d (distance or displacement)
300
A kid riding a bike at 5 m/s takes 600 seconds to ride to his friends house. How far did he ride?
3000 m or 3 km
300
A car driving down the highway is cruising at 30 m/s. The guy spots a police behind him and thinks he is in trouble. He speeds up to a speed of 50 m/s in 4 seconds. What was his acceleration during that time?
5 m/s/s
400
What is a number along with a direction called?
Vector
400
Unit of Time
second
400
d/v = ?
t (time)
400
A car drives 50 m/s. How long does it take for it to go 5 km?
100 s
400
What is the acceleration of a bee that flies from rest to 10 m/s in 2.5 seconds?
4 m/s/s
500
What does velocity have that speed doesn't?
A direction
500
m/s/s is a unit for what?
Acceleration
500
(vf-vi)/a = ?
t (time)
500
What is the speed of a rocket that covers 10000 m in 20 seconds?
500 m/s
500
If a motorcycle accelerates from rest to 100 m/s at 10 m/s/s, how long would it take?