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Newton's Laws & Gravity

Total questions: 37

Worksheet time: 53mins

Name
Class
Date
1.

Watch the first marble as it collides with the second marble . Which of Newton's Laws does this represent?


Observar cómo choca la primera canica con la segunda canica. ¿Cuál de las leyes de Newton representa esto?

a)

Newton's 1st Law, inertia

b)

Newton's 2nd Law, Force = m x a

c)

Newton's 3rd Law, action/reaction

2.

Observe the motion of the washer as the notecard is pulled quickly out from under it. Which of Newton's Laws does this represent?


Observar el movimiento de la moneda mientras saca rápidamente el papel de debajo. ¿Cuál de las leyes de Newton representa esto?

a)

Newton's 1st Law, inertia

b)

Newton's 2nd Law, Force = m x a

c)

Newton's 3rd Law, action/reaction

3.

Watch what happens as Blake releases the balloon. Which of Newton's Laws does this represent?


Mira lo que sucede cuando Blake suelta el globo. ¿Cuál de las leyes de Newton representa esto?

a)

Newton's 1st Law, interia

b)

Newton's 2nd Law, Force = m x a

c)

Newton's 3rd Law, action/reaction

4.
What is Newtons 1st law of motion?
a)
Force= Mass multiplied by acceleration 
b)
An object at rest stays at rest unless acted on an unbalanced force. (inertia)
c)
For every action there is a equal and opposite  re-action.
d)
law of gravity 
5.

What is Newton's 2nd law of motion?

a)

Inertia

b)

Force= Mass multiplied by acceleration

c)

For every action there is a equal and opposite re-action.

d)

Law of gravity

6.

Newton's 2nd Law says the acceleration of an object depends on its _______ and ______. (Choose two answers)

a)

force or applied force

b)

weight

c)

gravity

d)

mass

7.

What is Newton's 3rd Law?

a)

For every action there is an equal and opposite reaction.

b)

Acceleration depends on two variables, the mass of the object and the amount of force.

8.
 What is the unit called that measures force?
a)
Isaac
b)
Yee
c)
Newton
d)
kilogram
9.
Why is the net force 0 in the image?
a)
Because the elephants are the same size
b)
Because they are both pulling the same amount of force in opposite directions
c)
Because they are elephants
d)
Because they are pulling away from each other.
10.

When the teacher rearranges the desks in the classroom, she must apply ____________ to push and pull the desks around.

a)

acceleration

b)

force

c)

weight

d)

magnets

11.

Letting go of a balloon full of air is demonstrating Newton's ______ _______ ________ _________ because the air comes out of the back and the balloon moves forward.

a)

1st law of motion

b)

2nd law of motion

c)

3rd law of motion

d)

13th law of motion

12.

What law is best described by inertia?

a)

1st

b)

2nd

c)

3rd

d)

law of conservation of mass

13.

A 20 kg bike accelerates at 10 m/s2. what was the force

F = m x a

a)

25 Newtons

b)

20 Newtons

c)

200 Newtons

d)

10 Newtons

14.

Who is the scientist that created the laws of motion?

a)

Alfred Wegener

b)

Sir Isaac Newton

c)

Albert Einstein

d)

Sir Paul McCartney

15.

Which best describes a force?

a)

numerical order of mass

b)

The direction an object moves

c)

The mass of an object

d)

a push or pull

16.

What causes a person sliding with socks to move faster than a person sliding with shoes on?

a)

less friction

b)

more friction

c)

powerful legs

d)

longer legs

17.

What is the purpose of a parachute?

a)

To create a faster fall

b)

To create shock resistance

c)

To create air resistance

d)

To cushion a fall

18.

A fireman turns on his hose and is knocked backwards is an example of...

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

Newton's 4rth Law

19.
An automobile you are riding in suddenly stops, but you continue to go forward.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
20.

The force that causes objects with mass to attract one another.

a)

Weight

b)

Gravity

c)

Mass

d)

Magnetism

21.

The gravitational attraction between two objects would increase if both masses are –

a)

increased, and the distance between them is increased.

b)

increased, and the distance between them is decreased.

c)

decreased, and the distance between them is decreased.

d)

decreased, and the distance between them is increased.

22.

Why do planets orbit the Sun?

a)

The Sun is the only celestial object that has a gravitational pull.

b)

The Sun’s chemical composition makes it attract planets.

c)

Only celestial bodies that emit light, like the Sun, can be at the center of an orbit.

d)

The Sun is the most massive object in our solar system, so it exerts the greatest gravitational pull.

23.

Gravity can be defined as the –

a)

force of attraction between two or more masses.

b)

friction created when two objects are in contact.

c)

energy given off by stars due to nuclear reactions.

d)

path an object follows as it moves through space.

24.
Any object with mass has gravity.
a)
True
b)
Sometimes
c)
False
d)
Never
25.
A person would weigh less on on the Moon than on the Earth because . . .
a)
Moon has more mass, and therefore more gravity
b)
Moon has less mass, and therefore more gravity
c)
Moon has more mass, and therefore less gravity
d)
Moon has less mass and therefore less gravity
26.

What dwarf planet was downgraded from planetary status in 2006?

a)

Mercury

b)

Uranus

c)

Neptune

d)

Pluto

27.
A measure of the amount of matter in an object
a)
mass
b)
weight
c)
gravity
d)
pounds
28.

Which of the following will NOT change in different gravities?

a)
wieght
b)
force
c)
mass
d)
pounds
29.

Which of the following WILL change with different gravitational forces?

a)

the mass of an object

b)

the amount of matter in an object

c)

the weight of an object

d)

the kilograms of an object

30.
What would happen to your weight if Earth's mass was cut in half?
a)
increase because gravitational force increases
b)
decrease because gravitational force decreases
c)
decrease because gravitational force increases
d)
increase because gravitational force decreases
31.
What force causes objects falling near Earth's surface to slow down?
a)
Gravity
b)
Air Resistance
c)
Centripetal Force
d)
Newtons
32.
Any object with mass has gravity.
a)
True
b)
False
33.

We represent forces by drawing what?

a)

points

b)

arrows

c)

triangles

d)

circles

34.

What does gravity depend on?

a)

mass and weight

b)

speed and distance

c)

distance and direction

d)

mass and distance

35.

All forces have what two things

a)

strength and speed

b)

speed and direction

c)

strength and direction

d)

speed and size

36.

The amount of gravity pushing down on an object

a)

force

b)

weight

c)

mass

d)

gravity

37.

the force that opposes motion

a)

mass

b)

weight

c)

friction

d)

speed

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