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Water rockets

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.

Which rocket component reduces drag?

a)

nose cone

b)

streamer

2.

Which rocket component increases drag?

a)

nose cone

b)

streamer

3.

Which rocket component provides stability?

a)

fin

b)

streamer

c)

nose cone

d)

shockcord

4.

Which of these variable can you NOT control?

a)

The amount of water in the rocket

b)

The weight of the rocket

c)

The amount of wind

d)

The length of the rocket

5.

What is aerodynamics?

a)

How loud the rocket is when it launches

b)

The study of rocket science

c)

How high the rocket goes during flight

d)

The study of how objects move through the air

6.
Relating to Newton’s Third Law, action and reaction, what is the reaction when a rocket expels gas, smoke and flames from the nozzle end of the rocket engine?
a)
Nothing
b)
Propels in the opposite direction
c)
Creates a balanced force
d)
Creates friction
7.
What is the principle of inertia?
a)
All matter, because of its mass, resists changes in motion.
b)
Some matter, because of its mass, resists changes in motion.
c)
All matter, because of its weight, resists changes in motion.
d)
Some matter, because of its mass, resists changes in motion.
8.

What two forces slow a rocket down as it is being launched?

a)

Thrust & Lift

b)

Weight & Drag

9.

I want to get the most thrust from my rocket. What kind of nozzle do I need?

a)

A narrow nozzle

b)

A wide nozzle

c)

It doesn't matter

10.

The force supplied by the rocket engine must be strong enough to overcome...

a)

Gravity

b)

Weight

c)

Thrust

11.

The nose cone of the rocket is shaped to...

a)

Increase thrust

b)

Decrease drag

c)

Increase drag

12.

How does Newton's third law explain how a rocket will take off?

a)

The rocket doesn't move until ignition

b)

The more mass the rocket has the more force is needs to take off

c)

Gas pushes down, the rocket goes up.

13.

The force used to provide lift for the rocket is...

a)

Weight

b)

Control

c)

Thrust

d)

Inertia

14.

When the rocket engine is falling back down towards earth it is in...

a)

Air resistance

b)

Free fall

c)

Velocity

15.

Explain how Newton's second law affects a rocket:

a)

A rocket stays at rest until ignition

b)

Gas pushes down, the rocket goes up

c)

The more mass the rocket has the more force it needs to take off

16.

When a rocket is sitting on a launch pad, what type of energy does it have?

a)

Potential

b)

Kinetic

c)

Gravity

17.

When a rocket is blasting off into space, what type of energy does it have?

a)

Potential

b)

Kinetic

c)

Gravity

18.

Why is it important to have fins on your rocket?

a)

They stabilize the rocket

b)

The reduce drag

c)

They evenly distributes the weight

19.

A rocket is launched into space going 1000m in 20s. What is the velocity of the rocket?

a)

The velocity of the rocket is 50m/s going down.

b)

The velocity of the rocket is 500m/s going up.

c)

The velocity of the rocket is 50m/s going up.

d)

The velocity of the rocket is 50mi/hr going up.

20.

How does Newton's first law explain how a rocket will take off?

a)

The rocket stays at rest until ignition.

b)

The more mass a rocket has the more force is needed to take off.

c)

Gas pushes down, the rocket goes up.

21.

Which of the four forces on a rocket is affected by gravity?

a)

Weight

b)

Thrust

c)

Lift

d)

Drag

22.

What 2 forces does thrust have to overcome for the rocket to be able to take off?

a)

Weight

b)

Thrust

c)

Lift

d)

Drag

23.

What is Newton's Third Law of Motion?

a)

An object in motion tends to stay in motion unless acted upon by an outside force.

b)

Force equals mass times acceleration

c)

An object at rest tends to stay at rest unless acted upon by an outside force.

d)

For every action there is an equal and opposite reaction.

24.

Which of the following statements about drag is incorrect? Drag:

a)

only occurs in a vacuum.

b)

is a force due to friction.

c)

decreases with decreasing speeds.

d)

is due to air resistance.

25.

Drag is to thrust as:

a)

reverse is to forward.

b)

forward is to reverse.

c)

spin is to top.

d)

top is to spin.