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Motion And Force
Test Description: A review on motion and force.
Instructions: Answer all questions to get your test result.
1) Speed can be defined as
A
Acceleration divided by time
B
Change in position divided by change in time
C
Change in time divided by change in position
D
Change in velocity divided by change in time.
2) Which of the following pieces of equipment might be helpful if you wanted to measure acceleration?
A
Triple beam balance
B
Spring scale
C
Stopwatch
D
Thermometer
3) In which situation is an object accelerating?
A
The velocity of a paper airplane is 2 m/s. Four seconds later, the velocity is still 2 m/s.
B
A car is parked on the side of the street?
C
A bicycle travels at a constant velocity down the street
D
A rock's velocity increases from 5 m/s to 10 m/s as it falls down a cliff.
4) A grasshopper jumps with a speed of 3 m/s from a leaf. It flies through the air for 2 seconds before landing on a fence. How far is the leaf from the fence?
A
8 meters
B
5 meters
C
6 meters
D
4 meters
5) A snowball flies through the air with a speed of 15 m/s. It spends 5s in the air before hitting the ground. Can the snowball have reached the enemy fort 50 meters away?
A
No, it will need a speed of 20 m/s to reach the fort.
B
Yes, it can have reached the fort.
C
No, it will need a speed of 50 m/s to reach the fort.
D
No, it will need a speed of 25 m/s to reach the fort.
6) Which of the following is an example of a measurement of velocity?
A
1m
B
1m/s
C
1 m/s^2
D
1 m/s north
7) Which statement best describes the difference between speed and velocity?
A
Velocity is speed with a direction.
B
Speed is velocity with a direction.
C
Velocity measures position, while speed does not.
D
Velocity is acceleration with a direction.
8) A migrating eagle flies 7.2 km north over 6 hours. What is the velocity of the eagle?
A
1.4 km/h
B
1.2 km/h north
C
0.83 km/h north
D
7.2 km north
9) Which of the following is an example of a measurement of acceleration?
A
4 m/s
B
4 m
C
4 cm^3
D
4 m/s^2
10) Which unit is acceleration measured in?
A
m
B
m/s
C
m/s^2
D
m/h
*select an answer for all questions
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