Quiz about Crash Course Kids Gravity

Question 1

Everything would fly off into space, without ___

Accepted Answer

the force of gravity

Answer

frictional forces

Answer

french fries

Answer

water

Question 2

Which type of objects are pulled toward Earth?

Accepted Answer

all objects

Answer

only apples

Answer

only light objects

Answer

only heavy objects

Question 3

If you are holding an apple, a bowling ball, and a feather, then let go of them, ___

Accepted Answer

they're all going down

Answer

the feather will stay put

Answer

only the bowling ball falls

Answer

only the heavy objects fall

Question 4

What is the force that pulls objects down toward the Earth?

Accepted Answer

gravity

Answer

friction

Answer

air resistance

Answer

static electricity

Question 5

What force brings the pencil down?

Accepted Answer

Gravitational

Answer

Applied

Answer

Magnetic

Answer

Normal

Question 6

What force is acting on the cat at the end?

Accepted Answer

Gravity

Answer

Friction

Answer

Electricity

Answer

Magnetism

Question 7

Which model has greater gravitational attraction (if any)

Accepted Answer

Model A

Answer

Model B

Answer

Both Model A and Model B (same gravity)

Question 8

"Gravity pulls things down to Earth", really means that gravity pulls things ___

Accepted Answer

toward the Earth

Answer

toward the South Pole

Answer

away from the North Pole

Answer

toward Antarctica

Question 9

Gravity is the force of attraction ___

Accepted Answer

between any two objects made of matter

Answer

on a light object, due to a heavier one

Answer

on a heavy object, due to a lighter one

Answer

between two objects of the same size

Question 10

A push or pull acting on an object is called ___

Accepted Answer

force

Answer

lever

Answer

pusher

Answer

puller

Question 11

Which English scientist was the first person to seriously study gravity?

Accepted Answer

Isaac Newton

Answer

Michael Faraday

Answer

Charles Darwin

Answer

Albert Einstein

Question 12

What event led to an "Aha!" moment for Sir Isaac Newton?

Accepted Answer

He was hit by a falling apple

Answer

He awoke from a deep sleep

Answer

He had a dream about gravity

Answer

He ate a delicious apple

Question 13

Sir Isaac determined that "what goes up ___"

Accepted Answer

must come down

Answer

isn't affected by gravity

Answer

stays up

Answer

goes into orbit

Question 14

A thrown ball will go up or sideways for a little bit ___

Accepted Answer

then will fall to the ground

Answer

then keep going

Answer

then come back

Answer

while it's not affected by gravity

Question 15

What is gravity?

Accepted Answer

A force that pulls objects toward each other

Answer

A type of energy

Answer

A chemical reaction

Answer

A magnetic field

Question 16

Which scientist is famous for formulating the law of universal gravitation?

Accepted Answer

Isaac Newton

Answer

Albert Einstein

Answer

Galileo Galilei

Answer

Nikola Tesla

Question 17

What happens to the gravitational force between two objects if the distance between them is doubled?

Accepted Answer

It becomes four times weaker

Answer

It doubles

Answer

It halves

Answer

It becomes four times stronger

Question 18

Which of the following is an example of gravity in action?

Accepted Answer

A ball falling to the ground

Answer

A magnet sticking to a refrigerator

Answer

Water boiling

Answer

A car accelerating

Question 19

What is the formula for gravitational force?

Accepted Answer

$$F = G \frac{m_1 m_2}{r^2}$$

Answer

$$F = ma$$

Answer

$$E = mc^2$$

Answer

$$F = k \frac{q_1 q_2}{r^2}$$

Question 20

If an object is dropped from a height, what force causes it to accelerate towards the Earth?

Accepted Answer

Gravitational force

Answer

Magnetic force

Answer

Frictional force

Answer

Nuclear force

Question 21

How does gravity affect the motion of planets in the solar system?

Accepted Answer

It keeps them in orbit around the sun

Answer

It keeps them stationary

Answer

It causes them to move in straight lines

Answer

It has no effect

Question 22

What is the acceleration due to gravity on Earth?

Accepted Answer

$$9.8 \, m/s^2$$

Answer

$$10.8 \, m/s^2$$

Answer

$$8.8 \, m/s^2$$

Answer

$$11.8 \, m/s^2$$

Question 23

Which of the following would increase the gravitational force between two objects?

Accepted Answer

Increasing the mass of both objects

Answer

Increasing the distance between them

Answer

Decreasing the mass of one object

Answer

Decreasing the distance and mass

Question 24

Why do astronauts appear weightless in space?

Accepted Answer

They are in free fall, orbiting Earth

Answer

There is no gravity in space

Answer

They are too far from Earth

Answer

They are moving too fast

Crash Course Kids Gravity

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