Changes in Force and Motion

Quiz
•
Science
•
8th Grade
•
Easy
+1
Standards-aligned
Erin Larsen
Used 2+ times
FREE Resource
11 questions
Show all answers
1.
OPEN ENDED QUESTION
3 mins • 1 pt
If mass increases, what must happen to the force in order to achieve the same change in motion?
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Answer explanation
The greater the mass of the object, the greater the force needed to achieve the same change in motion.
Tags
NGSS.MS-PS2-2
2.
OPEN ENDED QUESTION
3 mins • 1 pt
A boulder sits at rest on top of a mountain. What conclusion can be made about the forces acting on the boulder?
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Answer explanation
The forces acting on the boulder are balanced (net force equals zero).
Tags
NGSS.MS-PS2-4
3.
OPEN ENDED QUESTION
3 mins • 1 pt
A diagram of forces being applied to a box by four people is illustrated below. If the net force acting on the box is 10N to the right, what is the magnitude of the force applied by the boy pulling to the left?
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Answer explanation
14 N
Tags
NGSS.MS-PS2-1
NGSS.MS-PS2-2
4.
OPEN ENDED QUESTION
3 mins • 1 pt
Juan and Jose are having an argument about their science book. Juan says that since the book is sitting still, there are no forces acting on it. Jose says there are forces acting on the book. Which student is correct? Explain why.
Evaluate responses using AI:
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Answer explanation
Jose is correct because gravity is a force acting on all objects on Earth. However, the forces are balanced so the book is not moving (the net force on the book is zero).
Tags
NGSS.MS-PS2-2
NGSS.MS-PS2-5
5.
OPEN ENDED QUESTION
3 mins • 1 pt
What can cause a change in an object’s motion?
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Answer explanation
The change in an object’s motion depends on the sum of the forces on the object and the mass of the object.
Tags
NGSS.MS-PS2-1
NGSS.MS-PS2-2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The illustration shows the forces in Newtons (N) acting on three different blocks. Which blocks will experience a change in motion, or acceleration?
Blocks 1 and 2
Blocks 2 and 3
Blocks 1 and 3
Blocks 1, 2, and 3
Tags
NGSS.MS-PS2-1
NGSS.MS-PS2-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The illustration shows all the forces in Newtons (N) acting on a box. The sum of all the forces acting on the box results in a force acting on the box–
to the right with a strength of 11 Newtons
to the left with a strength of 7 Newtons
to the right with a strength of 25 Newtons
to the left with a strength of 6 Newtons
Tags
NGSS.MS-PS2-2
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