Gravity Quizlet

Definition of mass

Mass is a measure of the amount of matter n an object

Weight is measured in...

Pounds (lbs) or newtons (N)

Tools used to measure weight

Scale (with springs)

Explain how gravity can keep objects static

Static objects will not move because gravity can equal to an upward force keeping the 2 forces balanced, which equals no motion

What is the law of gravitational force?

The law of gravitational force states that all objects in the universe are attracted to each other. The magnitude of the force depends on the mass of the objects and the distance away from each other.

Explain how mass effects gravity on matter

All matter has mass and gravity is affected by the mass of matter. Gravity pulls objects towards each other.

Explain how Earth's gravity affects objects on earth

Earth's gravitational force is so large, due to mass having a large mass, that it pulls all objects on earth towards the center

Mass is measured in...

Grams

What is gravity and does gravity affect motion?

Gravity is a force of attraction between objects due to their masses. Gravity can change the motion of an object by changing the objects velocity.

Explain how the distance affects the magnitude of gravitational force

If the distance of 2 objects are close then the gravity will increase Close Distance= More gravity

Explain how mass affects the magnitude of gravitational force

If the masses of 2 objects increase then the gravity will increase. More mass= More gravity

Who created the law of gravitational force and why

Issac Newton in 1665 created the law of gravitational force by watching an apple fall to the ground. He knew there had to be an unbalanced force making the apple fall. (Some say the apple hit him in the head)

Tools used to measure mass

Triple beam balance

T/F- Mass does not change if gravity changes

True

T/F- Weight changes on different planets due to change in gravity

True

Definition of weight

Weight is a measure of gravitational force on an object