OpenSciEd Contact Forces (Unit Assessment Prep)
Authored by Gabrielle Galicia
Science
7th Grade
NGSS covered
Used 17+ times
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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements best describes what happens to objects during a collision?
Objects always return to their original shape after a collision.
Objects may change shape and motion during a collision.
Objects do not experience any force during a collision.
Objects only change motion, not shape, during a collision.
Tags
NGSS.MS-PS2-1
NGSS.MS-PS2-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to an object when it reaches its elastic limit during a collision?
It returns to its original shape.
It deforms permanently.
It breaks immediately.
It does not change shape.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which factor does NOT affect the elastic limit and breaking point of an object?
Thickness
Shape
Color
Material
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a collision, how do the forces that objects exert on each other compare?
They are equal in strength and opposite in direction.
They are unequal in strength and in the same direction.
They are equal in strength and in the same direction.
They are unequal in strength and opposite in direction.
Tags
NGSS.MS-PS2-1
NGSS.MS-PS2-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a free body diagram represent?
The speed of an object.
The forces acting on an object.
The color of an object.
The temperature of an object.
Tags
NGSS.MS-PS2-1
NGSS.MS-PS2-2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does increasing the speed of an object affect its kinetic energy (KE) and peak force during a collision?
It decreases both KE and peak force.
It increases both KE and peak force.
It only increases KE, not peak force.
It only increases peak force, not KE.
Tags
NGSS.HS-PS3-1
NGSS.HS-PS3-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the mass of an object is doubled, how does its kinetic energy change?
It remains the same.
It doubles.
It triples.
It quadruples.
Tags
NGSS.MS-PS3-1
NGSS.MS-PS3-5
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