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

The amount of force acting on a moving object can be measured by finding the objects mass and _________

ACCELERATION

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

How are forces like vectors?

They have direction

300

This force keeps the moon and Earth in orbit

GRAVITY

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

What is the force that acts in a situation of circular motion?

Centripetal force

400
Friction acts in a direction ___________ to the moving object.
OPPOSITE
400
Vector quantities have what 2 things?
magnitude and direction
400
The friction that slows down a bird in flight is called _______ friction.
FLUID
400

What force holds the nucleus together?

Strong Nuclear Force

500
What is the definition of a newton (what units make it up)?
kg m/s/s
500
What are the 4 types of friction?
SLIDING, ROLLING, FLUID, AND STATIC
500
__________ forces cause changes in motion.
UNBALANCED
500
What is the definition of a "newton"
THE FORCE NECESSARY TO MOVE A 1 KG MASS 1 METER/SEC/SEC
500
The tendency of an object to resist a change in motion is known as what?
INERTIA
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