Is distance a scalar or vector measurement?
Scalar
Is displacement a scalar or vector measurement?
Vector
What is the difference between Speed and Velocity?
Speed is how far something travels in a given time. Velocity includes direction.
What is the formula for calculating acceleration?
(Final Velocity-Initial Velocity) / Time
Which object(s) is(are) not moving?
Objects A and E
Asha drives her car 45 kilometres north. She stops for lunch and then drives 15 kilometres north. What distance did she cover?
60 km
Asha drives her car 45 kilometres north. She stops for lunch and then drives 15 kilometres north. What distance did she cover?
60 km North
What is the formula for calculating Velocity?
Displacement / Time
A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its speed is 4 m/s. But 3 seconds later, at the bottom of the slope, its speed is 22 m/s. What is its average acceleration?
6 m/s2
On average, which object is traveling fastest?
Object B
Michelle walks 100m toward the west, then turns and walks back the way she came 20m. What is her distance?
120m
Michelle walks 100m toward the west, then turns and walks back the way she came 20m. What is her displacement?
80m west
A ball rolls 8m in 2 sec. What is the ball’s speed?
4m/s
A car’s velocity changes from 32 m/s to 96 m/s in an 8.0-s period. What is its acceleration?
8m/s2
Which object(s) is(are) accelerating?
Object C
An Olympic runner competing in the 1600m circles the track exactly 4 times during a race. What is their distance?
6400m
An Olympic runner competing in the 1600m circles the track exactly 4 times during a race. What is their displacement?
0 m
A runner circles a track for a distance of 800m. It takes 4.0min. What is her average speed in m/s?
3.33 m/s
Rocket-powered sleds are used to test the responses of humans to acceleration. Starting from rest, one sled can reach a speed of 244 m/s in 1.80 s. What is its acceleration?
136 m/s2
Which object(s) change(s) its direction?
None
Anthony walks to the pizza place for lunch. He walks 1 km east, then 1 km south and then 1 km west. What distance did he cover?
3 km
Anthony walks to the pizza place for lunch. He walks 1 km east, then 1 km south and then 1 km west. What is his displacement?
1 km south
A runner circles the track for a distance of 800m. It takes 4.0min. What is her average velocity?
0m/s
A car is moving 12 m/s and coasts up a hill with a uniform acceleration of –1.0 m/s2 . How far has it traveled after 6.0 s?
54 meters
Explain the motion of the object in the graph.
An object moves in the - direction at a slow constant speed and then in a + direction at a fast constant speed