# Science 8 grade newtons law of motion

### 44 terms by bab1898

#### Study  only

Flashcards Flashcards

Scatter Scatter

Scatter Scatter

## Create a new folder

Advertisement Upgrade to remove ads

### What was Galileo trying to prove when he dropped a cannon ball and a musket ball from the leaning tower of pisa?

the mass will not effect acceleration from gravity

gravity

all objects

### Gravitational force_________ as mass increases. So a massive truck would have a _______ gravitational force than a small car.

increase, greater

increase

9.8m/s/s

same

### If all objects fall long enough, they can eventually stop accelerating, and reach their _________. So the force of gravity becomes _______ to the force of air resistance stopping the acceleration of the object.

terminal velocity, equal

air resistance

### When a flat piece of paper and a crumpled piece of paper are let go at he same time, which lands first?

The crumpled paper because there is less surface.

### Free fall is _________________________

When gravity is the only force acting on it.

### Free fall makes astronauts appear to be _____ or _______ in space.

floating, weightless

### Newton's First law of Motion states

an object at rest remains at rest, and an object in motion at a constant speed and in a straight line unless acted on by an unbalanced force.

Inertia

### Three examples of Newtons First law of motion are

a plane parked on a runway. a chair on the floor. a golf ball balanced on a tee.

### newtons second law of motion states

the acceleration of an object depends on the mass of the object and the amount of force applied.

### one examples of Newtons second law of motion are

heavy cart takes more time to accelerate.

### newtons third law of motion states that

whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first.

### three examples of the third law of motion are

a baseball hit by a bat, when you hit your hand on the table, when a rocket blasts off.

### momentum is

a property of a moving object that depends on the object's mass and velocity.

### momentum is calculated by multiply the mass of an objects ____________________

m=mass times velocity

larger

more

### projectile motion is __________________________

the curved path an object follows when thrown or propelled near the surface of the earth.

### two examples of a projectile motion are....

a swimmer diving into water. an athlete doing a high jump

### centripetal force is

an object travelling in a circle is constantly changing directions, so acceleration occurs continuously

### Inertia is

the tendency of an object to resist any change in its motion

### motion is

newton is famous for these laws

### gravity is

acceleration of a falling object is caused by this force

### acceleration

any change in velocity

### air resistance

the friction that slows down the motion of objects in air

### weightless is

when in free fall, astronauts appear this way

### projectile motion

the curved path traveled by a thrown baseball is known as this.

### free fall is

when gravity is the only force acting on an object

### centripedal force

is a unbalanced force that causes an object to move in a circular path.

### terminal velocity

reached when the downward force of gravity equals the force of air resistance

### momentum

this motion depends on mass and velocity

### reaction

a response to an action

### vertical

perpendicular to the ground

### horizontal

parallel to the ground

doing something

A.1st law

C. 3rd law

B. 2nd law

### Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

Example:

## Press Ctrl-0 to reset your zoom

### Please upgrade Flash or install Chrometo use Voice Recording.

For more help, see our troubleshooting page.

Create Set