Quiz about Air and Water resistance

Question 1

Which two of these forces act on parachutes?

Accepted Answer

Air Resistance

Accepted Answer

Gravity

Answer

Thrust

Answer

Kinetic Energy

Question 2

Another name for air resistance is...

Accepted Answer

Drag

Answer

Buoyancy

Answer

Streamline

Answer

Gravity

Question 3

The larger the surface area of the moving object, the ___________ air resistance there is.

Accepted Answer

More

Answer

Less

Answer

Longer

Answer

Quicker

Question 4

What causes an object to fall faster?

Accepted Answer

Smaller surface area

Answer

Larger surface area

Answer

If it has a parachute

Answer

If it is softer

Question 5

Air resistance pushes against falling

objects and __________________.

Accepted Answer

Slows them down

Answer

Speeds them up

Answer

Keeps them afloat

Answer

Spins them

Question 6

The larger the parachute the ____________

Accepted Answer

More drag

Answer

Less air resistance

Answer

More surface tension

Answer

Less drag

Question 7

Which has more air resistance?

Accepted Answer

Option B is correct

Answer

A.

Question 8

Air resistance is a force caused by...

Accepted Answer

Air pushing against moving objects

Answer

Water pushing against moving objects

Answer

Gravity pushing against moving objects

Answer

Normal force pushing against moving objects

Question 9

The more streamlined an object is, the...

Accepted Answer

Less air resistance

Answer

More air resistance

Answer

Slower air resistance

Answer

Faster air resistance

Question 10

When dropped from the same distance, which will fall to the floor faster?

Accepted Answer

Option B is correct

Answer

A.

Question 11

Look at the pictures of the cars. Which car will have the most air resistance force acting upon it? They will be moving at the same speed.

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

All will have equal air resistance force.

Question 12

What is a parachute designed to maximize?

Accepted Answer

Air Resistance

Answer

Gravity

Answer

Air Pressure

Answer

Thrust

Question 13

Why are wings on airplanes curved at the top?

Accepted Answer

To make the air go faster over the top of the wing. This lowers the amount of pressure on the wing.

Answer

To make the pressure on top of the wing greater

Answer

To make it look cool

Answer

That was the only model they had

Question 14

Can water resistance be reduced ?

Accepted Answer

Yes

Answer

No

Question 15

What is water resistance ?

Accepted Answer

friction between moving object in water

Answer

gravity in water

Answer

pulling force

Answer

friction between moving object in air

Question 16

Which of the given shapes will touch to the bottom first ??

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 17

What makes water resistance similar to surface friction ?

Accepted Answer

slows things down

Answer

increases the friction

Answer

decreases the surface area

Answer

increases the surface area

Question 18

Objects #1, #2, #3, and #4 are sliding across the table. All blocks move at the same speed of 2 m/s. The blocks have different masses.

Which block has the greatest air resistance force acting upon it?

Accepted Answer

All will have equal air resistance force.

Answer

Block #1

Answer

Block #3

Answer

Block #4

Question 19

Blocks #1, #2, #3, and #4 have equal mass. All four blocks slide across the table with a speed of 2 m/s. Which block has the lowest air resistance force acting upon it?

Accepted Answer

Block #1

Answer

Block #2

Answer

Block #4

Answer

All have equal air resistance force.

Question 20

Blocks #1, #2, #3, and #4 have equal mass. All four blocks slide across the table with a speed of 2 m/s. Which block has the greatest air resistance force acting upon it?

Accepted Answer

Block #4

Answer

Block #1

Answer

Block #2

Answer

All have equal air resistance force.

Question 21

Where will the airplane will be affected by the greatest air resistance force?

Accepted Answer

Moving on the runway (at the airport) at 100 m/s.

Answer

Flying at 2000 m altitude at 100 m/s

Answer

Flying at 5000 m altitude at 100 m/s

Answer

The airplane is affected by equal air resistance force at all three places.

Question 22

What is drag?

Accepted Answer

Friction due to a fluid

Answer

Friction due to surfaces touching

Answer

When an objects speed is constant because of air resistance as it falls

Answer

Things that bring you down

Question 23

Drag decreases with speed:

Accepted Answer

False

Answer

True

Question 24

What force ultimately slows the roller coaster to a stop?

Accepted Answer

Friction

Answer

Applied

Answer

Normal

Answer

Gravitational

Question 25

Friction is a force that acts in an ___________ direction of movement.

Accepted Answer

opposite

Answer

similar

Answer

parallel

Answer

west

Question 26

A type of friction that occurs when air pushes against a moving object causing it to decelerate.

Accepted Answer

air resistance

Answer

surface area

Answer

velocity

Answer

gravity

Question 27

What is true about this picture?

Accepted Answer

The net force is 3 N

Answer

the forces are balanced

Answer

the net force is 10N

Answer

The net force is 7N

Question 28

Are forces balanced or unbalanced when a car is moving at a constant speed in a straight line?

Accepted Answer

Balanced

Answer

Unbalanced

Question 29

The amount of friction depends on the weight of the objects pressing together.

Accepted Answer

True

Answer

False

Question 30

Rougher surfaces have ...

Accepted Answer

greater friction

Answer

less friction

Answer

the same level of friction

Question 31

Friction is a

Accepted Answer

CONTACT force

Answer

NONCONTACT force

Question 32

A body which offers very little resistance to the flow of air or water around it, is called:

Accepted Answer

streamlined shape

Answer

trimlined shape

Answer

streaklined shape

Answer

steamlined shape

Question 33

The friction between two surfaces does not depend on one of the following. This one is:

Accepted Answer

amount of surface area of the two objects which is in contact with each other.

Answer

weight of the object which tends to move on the surface of other object

Answer

degree of smoothness of surfaces of two objects in contact with each other.

Answer

degree of roughness of surfaces of two objects in contact with each other

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