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CO2 Balsa Wood Dragster Car Project

Total questions: 40

Worksheet time: 51mins

Name
Class
Date
1.

CO₂ Cartridge – A small ​ (a)   filled with carbon ​ (b)   that ​ (c)  

Choose from the below words
metal container
dioxide gas
powers the car.
2.

Aerodynamics – How​ (a)   moves​ (b)   , affecting​ (c)   and performance

Choose from the below words
air
around objects
speed
3.

Friction – The​ (a)   slows ​ (b)   objects when they touch ​ (c)  

Choose from the below words
force that
down moving
another surface
4.

Thrust – The​ (a)   that ​ (b)   the car ahead when the ​ (c)  

Choose from the below words
forward force
pushes
CO₂ is released
5.

Axle – A ​ (a)   that ​ (b)   the ​ (c)   and helps them ​ (d)  

Choose from the below words
rod
connects
wheels
spin.
6.

Chassis – The main​ (a)   or ​ (b)   of the ​ (c)  

Choose from the below words
frame
car.
body
7.

Wheelbase – The ​ (a)   between​ (b)   and back ​ (c)  

Choose from the below words
distance
the front
wheels.
8.

Bearing – A part that helps ​ (a)   and makes​ (b)   turn​ (c)  

Choose from the below words
reduce friction
the wheels
smoothly.
9.

Blueprint – A detailed ​ (a)   or ​ (b)   of the ​ (c)   design.

Choose from the below words
drawing
plan
car
10.

Weight – How ​ (a)   the car is, which ​ (b)   its ​ (c)  

Choose from the below words
heavy
affects
speed.
11.

Streamlined – A ​ (a)   that ​ (b)   air ​ (c)   to go ​ (d)  

Choose from the below words
smooth shape
reduces
resistance
faster.
12.

Drag – ​ (a)   resistance that ​ (b)   the car ​ (c)  

Choose from the below words
Air
slows
down.
13.

Momentum – The​ (a)   that keeps the car ​ (b)   after it ​ (c)  

Choose from the below words
force
moving
starts.
14.

Acceleration – ​ (a)   the ​ (b)   up after being ​ (c)  

Choose from the below words
How quickly
car speeds
launched.
15.

Deceleration – ​ (a)   the car ​ (b)   after ​ (c)  

Choose from the below words
How quickly
slows down
it stops.
16.

What powers the CO₂ dragster car?

a)
Electric battery
b)
Solar panels
c)
Wind turbine
d)
Compressed carbon dioxide (CO₂) gas
17.

What is the main purpose of aerodynamics in a dragster?

a)
To improve tire grip on wet surfaces.
b)
To increase speed without considering stability.
c)
To enhance fuel efficiency during races.
d)

To help the car go faster by reducing drag

18.

What happens when the CO₂ gas is released?

a)
CO₂ gas is absorbed by plants and promotes growth.
b)
CO₂ gas is converted into oxygen by the ocean.
c)
CO₂ gas forms clouds that block sunlight.
d)

The car moves forward quickly

19.

What is the purpose of the wheels on the dragster?

a)
To reduce weight for better fuel efficiency.
b)
To enhance the aesthetic appeal of the dragster.
c)
To provide a smoother ride on rough surfaces.
d)

To help the car move smoothly

20.

What is the chassis of the car?

a)

The body or frame of the car

b)
The chassis is the fuel system of the car.
c)
The chassis is the interior design of the car.
d)
The chassis is the engine of the car.
21.

Why do dragster cars need a streamlined shape?

a)
To increase weight for better traction.
b)
To enhance engine performance only.
c)
To improve tire grip on the track.
d)
To reduce air resistance and maximize speed.
22.

What does "momentum" mean in racing?

a)
Momentum is the weight of the car during a race.
b)

The force that keeps the car moving after it starts

c)
Momentum is the time taken to complete a lap.
d)
Momentum refers to the speed of the vehicle only.
23.

What is "drag" in racing?

a)
Drag is a type of fuel used in racing.
b)

A force that slows down the car

c)
Drag refers to the speed of a vehicle in a race.
d)
Drag is the weight of the vehicle affecting its performance.
24.

Why is weight important in a CO₂ dragster?

a)
Weight affects the dragster's color and design.
b)
Weight has no impact on the dragster's performance.
c)
Weight is only important for aesthetic purposes.
d)

A lighter car can go faster because there is less friction

25.

What is a "trial run" in a dragster race?

a)

A practice race to test the car

b)
A trial run is a warm-up lap taken by the audience.
c)
A trial run is a practice session for spectators.
d)
A trial run is the final race before the championship.
26.

A CO₂ dragster is a small, lightweight racing car powered by a carbon dioxide (CO₂) (a)   (cartr...). When the gas is released, the car moves forward quickly.

27.

(a)   (Bal...wo..) is used because it is lightweight and easy to shape, making the car faster and more aerodynamic.

28.

When the CO₂ gas is released, it creates (a)   (thru...), which pushes the car forward quickly.

29.

(a)   (Aerody...) is how air moves around the car. A streamlined shape helps reduce air resistance (drag), making the car go faster.

30.

The wheels reduce (a)   (fric...) and help the car move smoothly and quickly on the race track.

31.

A (a)   (heavy...) car may move slower because more force is needed to push it forward.

32.

Friction is a force that slows down the car. Smooth wheels and a good track help (a)   (redu... fric...), making the car faster.

33.

How can you improve the speed of their CO₂ dragster?

4 lines
34.

What is the purpose of a trial run?

4 lines
35.

Why is balsa wood used to build the dragster?

4 lines
36.

What happens if a dragster car is too heavy?

4 lines
37.

A ​ (a)   car can go ​ (b)   because there is ​ (c)  

Choose from the below words
lighter
faster
less friction
38.

  1. (a)   (Accel...)– How quickly the car speeds up after being launched.

39.

  1. (a)   (Streaml...) – A smooth shape that reduces air resistance to go faster.

40.

  1. (a)   (Momen...) – The force that keeps the car moving after it starts.

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