Force and Motion

Choose the BEST example of balanced forces.

• a car speeding up

• a leaf blowing in the wind

• a car moving at a constant speed

• a tennis ball bouncing back and forth between players.

Choose the BEST answer that describes how the mass of an object affects its motion.

• The greater the mass of an object, the slower the motion of the object.

• The greater the mass of an object, the faster the motion of the object.

• The greater the mass of an object, the greater the force to move the object.

• The greater the mass of an object, the greater the distance the object will travel.

Tags

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The 5th graders were playing a game of tug-of-war.  The class was divided equally with half the class on one side of the rope and the other half on the opposite side.  For 5 minutes the students pulled and pulled but neither side could pull the flag to one side or the other.  Choose the description of the forces during the 5th grade tug-of-war.

• The forces were unbalanced in the game.

• The forces were friction, gravity, and chemical energy.

• The students all had the same amount of strength.

• The forces were balanced in the game.

What is a contact force?

• A force that touches the object to make it move or change directions

• force that does not touch the object to make it move or change direction.

What is a non-contact force?

• A force that touches the object to make it move or change directions

• force that does not touch the object to make it move or change direction.

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Molly is watching a wind-up toy walking across a table. She observes that the toy covers 1 cm every second for 10 seconds. Which graph do you think most closely represents the toy's  journey across the table?

• A

• B

• C

• D

Tags

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Melissa and Gabe were testing the flight of leaves as they tossed them in the air. The leaves would go up and then came to a rest on the ground. What force made the leaves land on the ground?

• Gravity

• Friction

• Mass

• Air pressure

Tags

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How is motion affected when forces are balanced acting on an object?

• Keep an object moving at the same speed.

• Keep an object at rest or not moving.

• Both options.

• Neither of the options.

Tags

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What are two examples of forces?

• Art and Music

• A push or pull

• A stand or ground

• The dark side and the light side

Tags

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What is a force

• Friction

• Mass

• A Push or a Pull

• I don't know

Tags

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