Force, Motion, and Energy
Authored by Silvana Bedini
Science
8th Grade
NGSS covered
Used 22+ times
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28 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A leaf fell from a tree branch. The path it followed is shown in the diagram. Which of these best describes why the leaf fell in crooked path instead of straight down?
Objects with irregular shapes never fall in straight lines.
Air currents and gravity applied changing and unbalanced forces to the leaf.
The upward force of the air on the leaf was greater than the downward force of gravity.
Once the leaf was in motion, it continued moving in the same direction because the forces were balanced?
Tags
NGSS.MS-PS2-2
NGSS.MS-PS2-4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Four students push carts filled with sports equipment across the gym. Each student pushes with the same amount of force. Which cart has the greatest change in speed?
Tags
NGSS.MS-PS2-2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A student used a video camera to record another student dropping a marble through water in a graduated cylinder. The students watched the video in slow motion and made the observations shown below. During which part or parts of the marble's fall did the marble experience unbalanced forces?
Part 1 only
Parts 1 and 2 only
Part 3 only
Parts 2 and 3 only
Tags
NGSS.MS-PS2-2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The diagram shows a homemade car being pushed with a force of 25 N. The force causes the car to move at a constant speed of 3 m/s2. What will happen if the force is changed to 35 N?
The car will move at a constant speed of 13 m/s.
The speed of the car will not change.
The speed of the car will increase.
The speed of the car will decrease to 1 m/s.
Tags
NGSS.MS-PS2-2
NGSS.MS-PS2-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A student graphed the position of a cart during a 7-second time interval. Which statement best describes the cart?
The cart was stationary with a velocity of 0 m/s for the entire 7 seconds.
The cart was stationary except for a short burst of acceleration of 0.5 m/s2.
The cart moved at a constant velocity of 0.5 m/s for the entire 7 seconds.
The cart accelerated at a constant rate of approximately 0.8 m/s2.
Tags
NGSS.MS-PS3-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What form of energy is used when you sharpen your pencil?
Heat
Mechanical
Light
Sound
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
On this distance-time graph what is the line showing?
An object going at a constant speed.
An object slowing down.
An object speeding up.
An object stopping.
Tags
NGSS.MS-PS3-1
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