Ping-Pong Concepts Quiz

1.

5 points

Air resistance is what causes a projectile to accelerate in air.

True

False

2.

5 points

What is the definition of friction?

Mass x Acceleration

The resistance that one surface or object encounters when moving over another.

3.

5 points

What is torque?

A measurement of speed and direction.

A twisting force that tends to cause rotation.

4.

5 points

What is the Magnus Effect?

The force exerted on a rapidly spinning cylinder or sphere moving through air at an angle to the axis of spin.

An increase/decrease in the frequency of sound or light as the source and observer move toward/away from each other.

5.

5 points

The mass of the ping-pong ball is a factor of calculating air resistance.

True

False

6.

5 points

What is kinetic energy?

Energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.

Energy that a body possesses by virtue of being in motion.

7.

5 points

In a freefall, the only force acting upon the object is gravity.

True

False

8.

5 points

What is the equation for Newton's Second Law?

y=mx+b

f=ma

9.

5 points

What is potential energy?

Energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.

Energy that a body possesses by virtue of being in motion.

10.

5 points

What is the acceleration of gravity on Earth?

14.57 m/s/s

9.8 m/s/s

11.

5 points

What is the measurement of the speed and direction of a ping-pong ball called?

Acceleration

Velocity

12.

5 points

When the player is holding the ball, is the ball in motion or at rest?

At rest

In motion

13.

5 points

Why do ping-pong balls spin?

Wind resistance.

As the ball rotates in midair, differences in air pressure between the top, back and side of the ball causes the ball to curve and dip.

14.

5 points

The player's arm moving to hit the ball is a form of acceleration.

True

False

15.

5 points

What is Newton's Third Law?

Every action has an equal and opposite reaction.

The Universal Law of Gravitation.

16.

5 points

What is Newton's First Law?

An object in motion will stay in motion, where as an object at rest will stay at rest; unless acted upon by another force.

All molecular movement stops at absolute zero, or -459.4 degrees Fahrenheit.

17.

5 points

The player hitting the ball is an example of what?

Energy Transformation

Energy Transfer

18.

5 points

The paddle hitting the ball and propelling it forward is an example of energy transformation.

True

False

19.

5 points

How many laws of motion does Newton have?

5

6

4

3

20.

5 points

What is an example of force being used in a game of ping-pong?

The player moving the paddle to hit the ball.

The paddle hitting the ball.

The ball hitting the table.

All of the above.