A pull or push that acts on an object
Listening to music
Watching tv
Sleeping
Lifting weights
Based on inertia, a moving object will go in a _____ line unless some force makes it change direction.
The mover pushed his cart full of boxes on the tile floor and it went fast and easy. When he pushed his cart on the carpet, it was harder because there is more friction on the carpet. Therefore, he must _____.
use more force to push the cart when he’s on the carpet
The mover pushed his cart full of boxes on the tile floor and it went fast and easy. When he pushed his cart on the carpet, it was harder because there is more friction on the carpet. Therefore, he must _____.
a. leave the cart outside and take a nap
b. use less force to push the cart when he’s on the carpet
c. use more force to push the cart when he’s on the carpet
d. forget the cart and carry the boxes one at a time
Friction
causes resistance between two objects
A ball is laying on the floor. When will the ball move?
Based on inertia, a moving object will go in a _____ line unless some force makes it change direction.
a state of rest of an object or uniform motion in a straight line unless a force acts on it
Which of the following would have the most friction?
a. ice
b. a floor that has just been waxed
c. carpet
d. a surfboard
The taxi driver has to be more careful when driving in winter because the road is more slippery than when he drives in summer. That means that the friction on the road during winter is _____ the friction during summer.
When an object changes position because of force and has movement, it is called _____.
a. force
b. push
c. pull
d. motion
What is it called when an object joins with another magnet or iron material?