Identifying the Force
Push/Pull/Twist
Push/Pull/Twist
Which force hold us to the Earth's surface?
Gravity
What is the amount of matter in an object?
Mass
Opposites _________!
Attract
True/False: Friction opposes motion
True
What force keeps the moon in orbit around the Earth?
Gravity
Opening a window
Push
What is a push or a pull on an object?
Force
What element makes a magnet magnetic?
Iron
True/False: The three states of matter all experience NO friction
False
The measurement of the amount of matter in an object.
Mass
Opening a jar
Twist
What is the gravitational force exerted on an an object?
Weight
What is an example of something that can not be a magnet?
wood, paper, coins
Friction is greater on __________ surfaces.
Rougher
Mass will never ________.
Change
Turning a doorknob
Twist
Which force pulls on an object without actually touching them?
Gravity
All magnets have _________ and ________ poles.
North and South
inertia
In a magnetic is the poles are opposite that will __________ to eachother
attract
Shooting a basketball
Push
What is a force that affects and object by touch?
Friction
What are the two types of magnets?
Bar and Horseshoe
a) Carpet
b) Ice
c) Snow
Carpet: Roughest
Which of the following would be attracted to a magnet?
a) nails
b) wood
c) paper
Nails