Kidscience: Physics Of Pole Vaulting

3 Questions | Total Attempts: 160

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• 1.
WHICH IS THE BEST DESCRIPTION OF THE 1ST LAW OF MOTION?
• A.

The pole vaulter must use more force in order to accelerate his body up and over the bar. The stronger the pole vaulter the farther he can propel up and forward.

• B.

The pole vaulter has momentum, speed, and velocity as he is moving through the air. He is changing his position because he is in motion.

• C.

The pole vaulter's speed will stay constant while he is moving through the air. The speed depends on how fast they run and how much force they apply.

• D.

The pole vaulter has inertia and resists changes in motion. Because of this he will remain at rest until he applies a force using the pole. Once he is in the air he will continue to move until some force brings him down.

• E.

The pole vaulter applies a downward force to the pole and propels upward. Once he hits the ground he can feel the shock of the ground pushing back on his body.

• 2.
WHICH IS THE BEST DESCRIPTION OF THE 2ND LAW OF MOTION?
• A.

The pole vaulter must use more force in order to accelerate his body up and over the bar. The stronger the pole vaulter the farther he can propel up and forward.

• B.

The pole vaulter has momentum, speed, and velocity as he is moving through the air. He is changing his position because he is in motion.

• C.

In space this sport would be hard to play beacuse the pole vaulter would probably not come back down once he went over the bar.

• D.

The pole vaulter applies a downward force to the pole and propels upward. Once he hits the ground he can feel the shock of the ground pushing back on his body.

• E.

There are no forces acting on the pole vaulter as he is flying through the air.

• 3.
WHICH IS THE BEST DESCRIPTION OF THE 3RD LAW OF MOTION?
• A.

The pole vaulter has momentum, speed, and velocity as he is moving through the air. He is changing his position because he is in motion.

• B.

The forces are unbalanced when he accelerates up and forward.

• C.

The pole vaulter applies a downward force to the pole and propels upward. Once he hits the ground he can feel the shock of the ground pushing back on his body.

• D.

The height of the pole vaulter may affect his inertia. The greater the mass, the more the inertia.

• E.

All matter has inertia because all matter has mass.