FORCES
BALANCED FORCES
UNBALANCED FORCES
INTERACTING FORCES
FORCES HODGE PODGE
100

A push or a pull that affects matter

FORCE

100
"As long as the forces on an object balance each other, the object's motion will not change" describes which law?
1st LAW OR INERTIA
100
"A small car gets better gas mileage than a big car" is best explained by which law?
NEWTON'S 2nd LAW (OR F=ma)
100
"Whenever an object exerts a force on a second object, the second object exerts an equal force back onto the first object" describes which law?
NEWTON'S 3rd LAW (OR ACTION - REACTION)
100

Yoda swims east at a speed of 4 m/s. What is his velocity?

4 m/s east

200

This force keeps the moon and Earth in orbit

GRAVITY

200
What is the force that occurs when 2 surfaces rub together?
FRICTION
200
Speed is described in measurements of what 2 things?
distance and time
200
The measure of gravitational force on a object is called _________.
WEIGHT
200
Give 3 examples of acceleration.

Speeding up, slowing down and changing direction.

300

The force that opposes gravity by being on the surface.

What is normal force?

300
Seatbelts protect you from the effects of which law?
NEWTON'S 1st LAW (OR INERTIA)
300
What is the speed of a car that travels 150 miles in 2 hours?
75 miles/hr
300
What is the difference between mass and weight?
WEIGHT DEPENDS ON GRAVITY
300
Julie is standing on a platform. If she exerts 350 N of force on the platform, how much force does the platform exert back on Julie?
350 N
400

The statistical unit of measurement in weight for force.

What is a newton?

400
Friction acts in a direction ___________ to the moving object.
OPPOSITE
400

What is the distance travelled if a car moves at a constant rate for 5 hours at 65 miles an hour?

      S=d/t

325 miles

400

Who came up the laws of motion?

Sir Issac Newton

400

If Julie is leaning on a pole with a force of 65N and the pole falls over, what amount of force was exerted on the pole?

anything over 66N

500

What is the force applied if the mass is 78kg and its acceleration is 0.2 m/s/s?

                 F = MA

15.6 N

500

What is the mass of an object if the force applied is 34N and its acceleration is 0.5 m/s/s?

            F=MA

68kg

500
__________ forces cause changes in motion.
UNBALANCED
500

What is the definition velocity?

speed + direction

500
The tendency of an object to resist a change in motion is known as what?
INERTIA
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