Big Idea 13 Balanced and Unbalanced Forces Quiz

What happens to a table tennis ball when 10 N of force is applied to it?

• It moves the same distance as with 5 N of force.

• It does not move at all.

• It moves a shorter distance and with less speed.

• It moves farther and with more speed.

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What is required to move an object?

• No forces acting on it

• Equal forces in opposite directions

• Balanced forces

• An imbalance of forces

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If Ryan uses 100 N of force and Roberto uses 200 N of force in opposite directions on a box, which direction will the box move?

• It will move in both directions

• It will not move

• Toward Roberto

• Toward Ryan

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What is an example of balanced forces?

• A car accelerating

• A hammer resting on a table

• A soccer ball being kicked

• A box being pushed by unequal forces

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What happens when two teams pull on opposite sides of a rope with equal force in a 'Tug of War' game?

• The rope moves toward one team

• The rope breaks

• The rope moves toward the other team

• The flag tied to the center of the rope does not move

Tags

NGSS.MS-PS2-2

What forces act on a car moving at a constant speed on a flat, straight street?

• No forces

• Balanced forces including the engine, gravity, friction, and air pressure

• Only gravity

• Only the pushing force of the engine

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What causes a skydiver to slow down to a consistent speed after opening their parachute?

• Gravity

• Increased mass

• Air resistance opposing gravity

• Balanced forces without air resistance

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What indicates that the forces acting on a moving car are balanced?

• The car is decelerating

• The car is moving at a constant speed

• The car is accelerating

• The car is changing direction

What happens to the forces acting on an object when it is not moving?

• The object is accelerating

• The forces are unbalanced

• There are no forces acting on it

• The forces are balanced

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What will happen if the forces acting on a car or skydiver change?

• The object will stop moving

• The object will move in the same direction

• The forces will remain balanced

• The forces will become unbalanced

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