An object at rest will _________________ unless acted upon by a force.
at rest
100
What would have more inertia (Harder to start moving and Harder to stop moving)?
A truck or a tennis ball?
A truck
100
Pushes and pulls are types of ______.
Force
100
What is the force that pulls objects together?
Gravity!
200
True or False: Two or more surfaces have to be touching for friction to be present
True
200
An object ______________ will stay in motion unless acted upon by a force.
in motion
200
Objects with more mass are ( Harder / Easier ) to move from a state of rest.
Harder
200
Gravity is a type of force that __________ objects toward one another?
Pulls
200
If there was no gravity, what would happen to a ball that was thrown in the air?
It would stay in the air.
300
Which has more friction? Ice or Sandpaper?
Sandpaper
300
What is the rule that states: An object at rest will stay at rest, and an object in motion will stay in motion, unless acted upon by a force.
Inertia
300
What is the relationship between mass and inertia?
(Answer must be close to the answer written)
As mass increases, inertia increases.
300
What type of force will make something move ( Balanced / Unbalanced ) ?
Unbalanced
300
Can gravity cause an object at rest to move?
Yes. An object at rest will stay at rest ONLY if there is no force acting on it
400
Which of the following is an example of friction?
A. Dropping a book on the ground
B. Someone lifting a book over your head
C. Pushing a book across a table
D. A book slowing down as it travels through the air
D. A book slowing down as it travels through the air
400
An object in motion will stay in motion unless acted upon by a force. Which force could cause a change in motion?
Friction, Gravity, push, or pull.
400
Which of these would be harder to push?
A 70,000 gram object or a 40 gram object?
70,000 gram object
400
In your own words, why do balanced forces not cause a change in motion? (Answer must be close)
The opposing forces cancel each other out
400
What is weight?
Gravity x Mass!
500
What is friction between the air and a moving object called?
Air resistance
500
In your own words, what is the definition for inertia?
Inertia: an object at rest will stay at rest, and an object in motion will stay in motion unless acted upon by a force
500
What is mass in your own words?
(Answer must be close)
Mass is the amount of matter in an object.
500
An object was pushed with a force of 50 N. The object experienced 80 N of friction. Is the object going to continue moving?
No.
500
An object on planet X has a mass of 5 grams. Planet X has a gravitational pull of 10 N. What is the weight of the object?