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Speed/motion
Test Description: Speed
Instructions: Answer all questions to get your test result.
1) To specify the position of an object, you need to know
A
distance
B
motion
C
reference point
D
speed
2) A person on a moving train sees a car that appears to be stopped. A person outside the train sees both the car and the train moving. This example shows
A
speed
B
distance
C
relative motion
D
reference point
3) Motion is a change in
A
speed over time
B
motion over speed
C
position over time
D
distance over speed
4) Susies knows that a friend runs 40 m in 5s. She could use this to calculate her friend's
A
distance
B
speed
C
velocity
D
motion
5) Bob walks a total of 200 m in 100 s. Dividing 200 m by 100 s gives you Bob's
A
velocity
B
motion
C
average speed
D
acceleration
6) Sara walked north at 100 m/s. Han had a different velocity but the same speed. He could have walked
A
100 m/s north
B
200m/s west
C
100m/s south
D
300m/s east
7) Acceleration measures a change in
A
velocity
B
motion
C
speed
D
location
8) ____ 9. Dan sits in a moving car. As he looks out the window, another car is right next to his. When he looks again, the other car is still right next to his. Which of the following is true?
A
The other car is moving with the same speed as Dan's car.
B
The other car is moving slower than Dan's car
C
. The other car is moving faster than Dan's car.
D
The other car is parked.
9) Speed in a specific direction is
A
relative motion
B
velocity
C
motion
D
acceleration
10) A flat, or horizontal, line on a distance-time graph means that the speed is
A
increasing
B
zero
C
nothing
D
decreasing
11) A cheetah can go from 0m/s to 20m/s in 2s. What is the cheetah's acceleration?
A
20 m/s
B
10 m/s2
C
10
D
5 m/s
12) A car travels 100m in 20s. what is it's speed?
A
5 m/s
B
10 m/s
C
10
D
5
13) Which of the following is the equation for speed?
A
D=S/T
B
S=D/T
C
S=D*T
D
T=D*S
14) When finding acceleration you need to know what three things
A
time, speed, and distance
B
final speed, inital speed and time
C
final speed, inital speed and distance
D
distance, motion, speed
15) If a car is stopped then speeds up to 50 m/s in 20s what is its acceleration?
A
5 km/hr
B
2.5m/s2
C
4 km/hr
D
2 km/hr
16) Maria walked 2 km in half an hour. What was her speed?
A
50 m/s
B
25 m/s2
C
2.5 m/s2
D
4km/hr
17) If susie is walking south at 10m/s and bob is running north at 10 m/s what can you say about their travel
A
their speed is the same, velocity is different
B
velcoity is the same, speed is different
C
nothing it's all different
*select an answer for all questions
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