Which graph shows an object slowing down? (Hint: speed vs time graph)
Motion

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Physics
•
6th - 8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
2.
FLASHCARD QUESTION
Front
If the unequal opposing forces are applied to the cart at the same time, what will occur?
Back
The cart will move to the right.
Answer explanation
360-270=90 to the right
3.
FLASHCARD QUESTION
Front
Which statement best summarizes the scientific concept shown in the cartoon? Options: A falling body accelerates at a constant speed. The motion of an object is constantly changing due to magnetic forces. The force of friction causes an object in motion to move faster. A body in motion will remain in motion unless influenced by an outside force.
Back
A body in motion will remain in motion unless influenced by an outside force.
Answer explanation
1st law of motion, object in motion will continue moving unless there is a force that acts on it.
4.
FLASHCARD QUESTION
Front
An object accelerates at 3 m/s2 when a 10 N force is applied. Which force would cause it to accelerate at 6 m/s2?
Back
20 N
Answer explanation
If 3 m/s2 -> 10 N
then 6 m/s2 -> 20 N
5.
FLASHCARD QUESTION
Front
Why does the sprinkler spin when water is sprayed through it?
Back
Every action has an equal and opposite reaction.
Answer explanation
3rd law, action/ reaction, water goes one direction then the hose will go the other direction, making the sprinkler spin.
6.
FLASHCARD QUESTION
Front
In which diagram would the block of wood have the greatest acceleration? Options: , , ,
Back
Answer explanation
Use F=ma
7.
FLASHCARD QUESTION
Front
Which car traveled at an average speed of 20 kilometers per hour? Options: A, B, C, D
Back
B
Answer explanation
speed = distance/ time
60 / 3 = 20
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