Powerpoint JeopardyForces of Motion

Laws Calculatin’ Fun

NewtonChallenge

Hodgepodge

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Forces are described by their __________ &

__________

Strength & direction

Greatest velocity that a falling object can reach.

Terminal Velocity

This is a product of an object’s mass & velocity.

Momentum

This is the tendency of an object to resist a change in motion.

Inertia

This law says that gravity acts between all objects in the

universe due to their mass.

Law of Universal Gravitation

This law states that an object at rest will stay at rest unless acted

on by an outside force.

Newton’s 1st Law of Motion

As mass increases; inertia _______________.

Increases

Force = mass x acceleration.

Newton’s 2nd Law

What force causes a bouncy ball to rise back into the air after it has hit the ground?

Reaction Force

Which law says that for every action there is an equal an

opposite reaction force.

Newton’s 3rd Law

A speedboat pulls a 55-kg water-skier. The force causes the skier to accelerate at 2.0 m/s2. Calculate the net force that causes this acceleration.

110 Newtons

Find the momentum of a 6 kg bowling ball that is moving at 10 m/s down the alley toward the pins.

60 kg m/s

A marble at rest is dropped from a tall building. The marble hits the ground with a velocity of 98m/s. How long was the marble in the air?

10 seconds

Find the acceleration of a 7kg mass if a force of 63 N is used to move it toward earth.

9 m/s/s

If Mr. Incredible has a mass of 15kg on earth. What would his mass and weight be on Mars.

The acceleration due to gravity of mars is 3.8.

Mass = 15 kgWeight = 57 N

___________ is when the only force acting on an object is

gravity.

Free Fall

If two erasers were released at the same time but one was dropped and the other was thrown, which would hit the ground first.

The same time

Kg x m/s is a unit of what?

Momentum

As mass increases; acceleration ________________.

Decreases

Objects at rest stay at rest will stay at rest unless __________

Acted on by an outside force

Why don’t objects stay in motion forever?

Friction

Which will hit the ground first a 2 kg golf ball or a 10 kg bowling ball?

They will hit at the same time

Why do some objects on earth fall faster than others?

Air Resistance

A rock at rest falls off a tall cliff and hits the valley below after 3. 5s. What is the rock’s velocity as it hits the ground?

34.3 m/s

Why don’t action reaction forces cancel out?

They do not act on the same object