View
214
Download
1
Category
Preview:
Citation preview
Powerpoint JeopardyForces of Motion
Laws Calculatin’ Fun
NewtonChallenge
Hodgepodge
10 10 10 10 10
20 20 20 20 20
30 30 30 30 30
40 40 40 40 40
50 50 50 50 50
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
Recommended