Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
science unit 2
| Question | Answer |
|---|---|
| why Is gravity an attractive force | it pulls objects toward each other |
| how does gravity on earth compare to gravity on jupiter | jupiter has stronger gravity |
| what else exerts a gravitational force on earth | the moon and sun |
| orbit | path an object follows around another object because of gravity |
| what does the strength of a force between two objects depend on | their mass and the distance between them |
| what is the effect of mass on gravity | more mass means a stronger gravitational force |
| what is the effect of distance on gravity | the farther apart objects are the weaker gravity becomes |
| how is friction created | when two surfaces touch and move against each other |
| what effect does a surface have on friction | rough surfaces create more friction smooth surfaces create less |
| how does friction affect motion | it slows down or stops motion |
| how can you reduce friction | use smoother surfaces, wheels, or lubricants like oil |
| how can you increase friction | make a surface rougher or press the surfaces together more |
| what effect does sandpaper have on objects? how does it affect friction | sandpaper makes it harder for objects to slide bc its rough surface increases friction |
| what does the amount of air resistance depend on | an objects speed, shape , and surface area |
| Gravity | A force of attraction between objects due to their masses |
| Mass | The amount of matter in an object |
Created by:
user-1950376