6.7B Review

What is the definition of balanced forces?

• Forces that are unequal in size and opposite in direction

• Forces that are equal in size and opposite in direction, resulting in no change in an object's motion.

• Forces that are equal in size and same in direction

• Forces that are unbalanced in size and direction

Give an example of unbalanced forces in action.

• A person pushing a shopping cart with a constant force.

• A car accelerating forward while the brakes are being applied.

• A book resting on a table.

• A car moving at a constant speed on a straight road.

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NGSS.MS-PS2-2

How do balanced forces impact the overall movement of an object?

• Balanced forces make the object move in a circular path.

• Balanced forces do not change the object's state of motion.

• Balanced forces cause the object to accelerate indefinitely.

• Balanced forces result in the object changing direction constantly.

Which of the following indicate unbalanced forces acting on an object?

• When the net force is zero.

• When the object is moving at a constant speed.

• When the object is at rest.

• When the net force acting on the object is not zero.

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NGSS.MS-PS2-2

What happens to an object when the forces acting on it are balanced?

• The object accelerates

• The object disappears

• The object changes color

• The object remains at rest or continues moving at a constant velocity.

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Can unbalanced forces ever result in an object remaining at rest?

• Yes

• No

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You and your dad are pushing the couch. Your dad pushes with 35 N right and you push with 25 N right. What is the net force on the couch?

• 60 N Right

• 50 N Right

• 10 N Right

• 60 N Left

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NGSS.MS-PS2-2

If these teams are pulling with the same amount of force what will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

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NGSS.MS-PS2-2

How will this object move? 

• It won't move. 
• It will move to the right. 
• It will move to the left. 
• It will move up. 

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In a tug of war the one side pulls with a force of 200N Left. The other team pulls with a force of 150N Right. What is the net force?

• 50N to the left.
• 350N to the left.
• 350N to the right.
• 50N to the right.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2