Question | Answer |
What is a force that of attraction btw objects that is due to their masses? | gravity |
Gravity can change the motion of an object by changing... | speed or direction or both |
does all matter have mass | yes |
what pulls everything towards the center of the earth | earth's gravitational force |
can balanced forces result in a change in position | no |
what does the law of conservation state | gravitational force increases when mass increases |
is gravitational force the same everywhere you go | No |
what is a measure of the gravitational force on an object | weight |
what is the amount of matter in an object | Mass |
does an objects mass ever change | no |
What is the SI unit for weight | newtons |
What is the SI unit for mass | grams |
why do objects fall to the ground at the same rate | Bc of the acceleration due to gravity is the same for all objects |
What kind of objects experience a greater gravitational force | heavier ones |
is a lighter object easier to accelerate than a heavy one | yes |
What is the rate at which velocity changes | acceleration |
what is the acceleration formula | v/t=a |
When the speed of a falling object increases what also increases | air resistance |
What is it called when an object falls at at a constant velocity | terminal velocity |
what is it called when gravity is pulling an object down and no other forces are acting on the object | free fall |
what's an example of free fall | floating in outer space |
when an object is in free fall does the object have weight | no |
can an object be in free fall if it's in air | no |
What is a unbalanced force that causes objects to move in a circular path | centripetal force |
what force keeps objects in centripetal force in motion | gravity |
what does centripetal mean | towards the center |
what is the curved path an object follows when it is than thrown or propelled near earth's surface | Projectile motion |
What are the two types of projectile motion | Horizontal and vertical |