Net Force
Authored by Samara Lopez
Physics, Science, Mathematics
8th Grade
NGSS covered
Used 1K+ times
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About
This quiz focuses on net force calculations and force analysis, targeting fundamental physics concepts appropriate for 8th grade students. The questions systematically build understanding of how multiple forces acting on objects combine to produce a net force, requiring students to master vector addition and subtraction with forces in opposite directions. Students must demonstrate their ability to calculate net force by adding forces in the same direction and subtracting forces in opposite directions, determine whether force systems are balanced or unbalanced, and predict the direction of motion based on the greater force. The quiz also assesses conceptual understanding of force as a push or pull, the relationship between balanced forces and constant motion, and the principle that unbalanced forces cause objects to accelerate in the direction of the net force. Created by Samara Lopez, a Physics teacher in the US who teaches grade 8. This quiz serves as an excellent formative assessment tool to gauge student understanding of force concepts before advancing to more complex topics like Newton's laws of motion. Teachers can use this as a warm-up activity to activate prior knowledge, assign it as homework to reinforce classroom instruction, or implement it as a review before summative assessments. The varied question formats, from computational problems to conceptual understanding checks, make it versatile for different instructional needs throughout a forces and motion unit. This assessment aligns with NGSS standard MS-PS2-2, which requires students to plan investigations to provide evidence that the change in an object's motion depends on the sum of forces acting on it and the mass of the object, and supports the foundational understanding needed for more advanced physics concepts in high school.
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the wind is heading south with a force of 5 N, and a car is going north with force of 78936 N, what is the Net Force and Direction.
78931 N North
78931 N South
78531 N North
78531 N South
Tags
NGSS.MS-PS2-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a car has a force of 54 N forwards and the brakes have a force of 73 N backwards, what is the overall Net Force.
16 backwards
19 forwards
18 backwords
23 forwards
Tags
NGSS.MS-PS2-2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you find the net force of this image.
Add up all the arrows
Add a green arrow and the orange arrow.
Subtract all the arrows.
Add the green arrows and subtract the orange arrow.
Tags
NGSS.MS-PS2-2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the net force and to what direction.
210 N to the right
280 N to the right
110 N to the left
180 N to the left
Tags
NGSS.MS-PS2-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the overall Net Force and which side has a greater Net Force?
641, Left
571, Left
601, Right
480, Right
Tags
NGSS.MS-PS2-2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the Overall Net Force and which side has a greater Net Force?
12, Right
0, Both are balanced
12, Both are balanced
0, Left
Tags
NGSS.MS-PS2-2
NGSS.MS-PS2-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Is the Net Force balanced or Unbalanced?
Balanced
Unbalanced
Tags
NGSS.MS-PS2-2
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