Vocabulary
Types of Forces
Units
Gravity
?
100
A push or a pull that has the ability to change motion.
What is a force
100
What is a net force?
the total forces acting on an object.
100
What is a newton?
the force required to accelerate a 1kg object 1m/s^2.
100

He discovered Gravity.

Newton

100

Which two countries share the longest international border?

USA and Canada

200
What is gravity?
Gravity is the force that attracts a body towards any other body that has mass.
200
Friction is a _________________.
contact force.
200
What is the unit of force?
a Newton
200

The moon has __________ gravity than earth.

less

200

 Power outages in the US are mostly caused by what?

squirrels

300

Friction is a _________ force.

Contact

300
An unbalanced force causes an object to ________.
move.
300

Smallest unit of mass

milligram (mg)

300
Which has more gravity the Earth or Neptune (11.0N/kg)
Neptune The Earth is 9.8N/kg
300

Which mammal has no vocal cords?

giraffe

400
Define mass
the amount of matter in an object.
400
When forces are balanced, there is ________________ in an object.
no motion
400
What are the units of mass?
Kilograms (kg)
400

When an object is transferred to the moon, what happens to its weight? Why?

Its weight decreases as a result of the lower gravity.

400

What is the tallest breed of dog in the world?

Great Dane

500

What is equilibrium?

when all forces are equal, doesn't move.

500
Friction is the
resistance to motion. or the force that oposes motion.
500
What are the units of gravity?
N/kg
500

When an object is transferred to the moon, what happens to its mass? Why?

Nothing. Mass stays the same. Mass is the amount of matter in an object, which stays the same.

500

In what year were the first Air Jordan sneakers released?

1984

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