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
Test 3 !<33
Forcces in Motion/Matter in Motion
| Question | Answer |
|---|---|
| A feather and a rock are dropped at the same time from the same height would land at the same time when dropped | by an astronaut on the moon |
| Newton's first law of motion applies | to moving objects and nonmoving objects |
| Acceleration of an object | Decreases as the mass of the object increases ; on the object increases ; is in the sae direction as the force on the object |
| If three balls of different material were dropped at the same time, which would hit the ground first? | They would all hit at the same time |
| According to Newton's first law of motion, an object that is not acted on by an unbalanced force | remain in motion |
| Friction is a force that | opposes an objects motion |
| If Earth's mass doubled, your weight would | increase because gravity increases |
| Which type of friction causes a skydiver's acceleration to change as he falls | fluid |
| The distance traveled divided by the time it took to travel that distances determines and objects | speed |
| ____ causes acceleration to stop at terminal velocity | Air Resistance |
| If you're riding a horse and the horse suddenly stops just before a hurdle, you will most likely continue moving forward. This is explained by Newton's ___ law of motion. | First |
| Because air particles have mass, they also have inertia that resists movement, which is called ____. | Air Resitance |
| An object at rest, tends to stay at rest this is called ___. | inertia |
| ____ only occurs when there is no air resistance. | free fall |
| A property of moving objects that depends on mass and velocity is _____. | momentum |
| falling objects stop accelerating at _____. | terminal velocity |
| ______ opposes motion between surfaces that are touching | friction |
| A change in a moving object's direction always results in a change in its ____. | velocity |
| _____ force always acts to oppose motion | frictional |
| a push or pull is a ____ | force |
| ____ is a measure of the gravitational force of an object. | weight |
| ____ is the amount of matter in an object. | mass |
| ____ is the force of attraction between objects that is due to their masses. | gravity |
| What is the difference between mass and weight | mass is the amount of space something takes up. Weight which also refers to volume is the measure of the gravitational pull on something. |
Created by:
100001178665194
Popular Physical Science sets