13.1 Forces and Changes in Motion
A pull or push of any kind
Force
Using less force on a given object will result in...
Slower motion
True or false: The heavier an object is, the more force is needed to move it.
True
Balanced forces _________ cause a change in motion.
Do not
What happens to an object when the force is stronger than gravity? It will (rise or fall) ___________
Rise
Using the same force but reducing the mass of an object results in...
Faster motion
There are three boxes. One is empty, one is full of bricks, one is full of felt. Which one will move the farthest?
The empty box
When items are exerting equal force, and no ________ is happening
Movement, motion
Any change in the speed or direction of an object's motion
Acceleration
If you maintain a constant force, and the object starts speeding up, then it... (maintains OR loses mass?
Has lost its mass
There are three boxes. One is empty, one is full of bricks, one is full of felt. Which one will require the most force to move?
The box of bricks
Two items exerting the same force
Balanced, equal
An attractive force acting between two massive objects, such as the earth and a vehicle.
Gravity
If you maintain a constant force, and the object starts slowing down, then it...
Has gained some mass
Items with less mass will move ___________ than items with greater mass.
Farther, faster
The more _________ applied to an item, the farther it will move.
Force
A force that resists motion between objects that are touching.
Friction
Balanced forces
Which item requires the most force to throw: A basketball, a yo-yo, or a small rock?
Basketball
A seesaw is an example of ______________
Uenqual force