Net Force Review
Authored by Jennifer Lynn
Physics
9th - 12th Grade
NGSS covered
Used 15+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Imagine David, Luna, and Elijah are playing a game of tug-of-war. They are trying to understand the concept of 'net force'. How would you explain it to them?
The net force is the force exerted by one of them on the others.
The net force is the force each of them exerts on themselves.
The net force is the overall force acting on the rope they are pulling.
The net force is the force exerted by the one who is running.
Answer explanation
The net force is the overall force acting on the rope they are pulling.
Tags
NGSS.MS-PS2-2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mia, Lily, and Scarlett are having a friendly competition to see who can push a box the furthest. They each push the box with different forces. How would you calculate the net force acting on the box?
Add up all the individual forces Mia, Lily, and Scarlett are applying on the box.
Subtract all the individual forces Mia, Lily, and Scarlett are applying on the box.
Divide all the individual forces Mia, Lily, and Scarlett are applying on the box.
Multiply all the individual forces Mia, Lily, and Scarlett are applying on the box.
Answer explanation
To calculate the net force, add up the individual forces applied by Mia, Lily, and Scarlett on the box.
Tags
NGSS.MS-PS2-2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ethan and Noah are having a debate about balanced forces. Ethan says, 'A balanced force is a force that is unequal in magnitude and opposite in direction to another force, resulting in no change in an object's motion.' Noah disagrees and says, 'No, a balanced force is a force that is equal in magnitude and opposite in direction to another force, resulting in no change in an object's motion.' Evelyn, who is listening to their debate, is confused. Can you help Evelyn figure out who is correct?
Ethan is correct: A balanced force is a force that is unequal in magnitude and opposite in direction to another force, resulting in no change in an object's motion.
Noah is correct: A balanced force is a force that is equal in magnitude and same in direction to another force, resulting in no change in an object's motion.
Both are correct: A balanced force is a force that is equal in magnitude and opposite in direction to another force, resulting in a change in an object's motion.
Noah is correct: A balanced force is a force that is equal in magnitude and opposite in direction to another force, resulting in no change in an object's motion.
Answer explanation
Noah is correct: A balanced force is a force that is equal in magnitude and opposite in direction to another force, resulting in no change in an object's motion.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Imagine Henry, Avery, and Aria are playing a game of tug-of-war. When would you say the forces they are exerting are balanced?
The forces are balanced when the net force acting on the rope is zero, meaning no team is winning.
The forces are balanced when the net force acting on the rope is positive, meaning Henry's team is winning.
The forces are balanced when the net force acting on the rope is greater than zero, meaning Avery's team is winning.
The forces are balanced when the net force acting on the rope is negative, meaning Aria's team is winning.
Answer explanation
The forces are balanced when the net force acting on the rope is zero, meaning no team is winning.
Tags
NGSS.HS-PS2-1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is an unbalanced force?
An unbalanced force is a force that only affects the shape of an object but not its motion.
An unbalanced force is a force that does not cause any change in an object's motion or shape.
An unbalanced force is a force that causes a change in an object's motion or shape.
An unbalanced force is a force that has equal magnitude and opposite direction.
Answer explanation
An unbalanced force causes a change in an object's motion or shape.
Tags
NGSS.MS-PS2-2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When do unbalanced forces occur?
Unbalanced forces occur when the net force acting on an object is equal to zero.
Unbalanced forces occur when the net force acting on an object is not equal to zero.
Unbalanced forces occur when there is no force acting on an object.
Unbalanced forces occur when the net force acting on an object is greater than zero.
Answer explanation
Unbalanced forces occur when the net force acting on an object is not equal to zero.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mia, Liam, and Daniel are playing a game of tug-of-war. Mia and Liam are on one team and they are pulling with forces of 5 N and 3 N respectively in the same direction. Can you help Daniel figure out the net force they are applying?
15 N
8 N
2 N
0 N
Answer explanation
The net force is the sum of the individual forces. Mia's force is 5 N and Liam's force is 3 N. Therefore, the net force is 8 N, which is the correct choice.
Tags
NGSS.MS-PS2-2
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