
Post-Test: Force, Motion, and Energy
Authored by andrea marksgarcia
Science
8th Grade
NGSS covered
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of an unbalanced force on an object's motion?
It makes the object stay still.
It makes the object move at a constant speed in a straight line.
It changes the object's speed or direction.
Tags
NGSS.MS-PS2-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If an object is described as traveling at "20 m/s to the east," what property of motion is being described?
Speed
Velocity
Acceleration
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A force of 40 N is applied to an object with a mass of 8 kg. What is the acceleration of the object?
0.2m/s2
5m/s2
320m/s2
Tags
NGSS.MS-PS2-2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do producers obtain their energy?
By eating other organisms
By breaking down dead organisms
By making their own food using sunlight
Tags
NGSS.MS-LS2-3
NGSS.MS-LS1-6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to most of the energy transferred between trophic levels in a food chain?
It is stored entirely in the next organism.
It is mostly lost as heat during metabolic processes.
It flows back to the producers.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following correctly completes the formula for Newton's Second Law of Motion?
Force = Speed × Time
Force = Mass × Acceleration
Force = Energy × Distance
Tags
NGSS.MS-PS2-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A car is driving around a circular track at a constant speed. Is the car accelerating?
No, because its speed is constant.
Yes, because its direction is constantly changing.
Only if it speeds up or slows down.
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