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Rockets
Test Description: Rocket forces, characteristics and aerodynamics
Instructions: Answer all questions to get your test result.
1) An object will stay at rest or continue in a straight direction unless acted upon by an outside force
A
Not a law
B
Newton's first law
C
Newton's second law
D
Newton's third law
2) For every action, there is an equal and opposite reaction
A
Newton's second law
B
Newton's first law
C
Not a law
D
Newton's third law
3) the force of an object= the mass x the acceleration
A
Newton's third law
B
Newton's first law
C
Newton's second law
D
Not a law
4) An example of action and reaction on a rocket is...
A
when the rocket reaches the top of its momentum and starts to fall down faster with gravity
B
the air pushing against the rocket as it shoots into the air
C
when the rocket expels gases backwards, the reaction is the forwards thrust on the rocket
D
pumping the air into the rocket and letting pressure build
5) Which is an example of aerodynamics helping a rocket?
A
A higher drag coefficient
B
large flat nose cone
C
a rocket without fins
D
slim exterior designed to reduce friction
6) What are the purpose of fins on a rocket?
A
fins increase thrust
B
fins promote balance and rotation on the vertical axis
C
fins spin the rocket on its horizontal axis
D
fins decrease drag
7) Which force makes the rocket fly?
A
weight
B
lift
C
thrust
D
drag
8) Which statement will make a rocket lift off?
A
thrust = weight
B
thrust is greater than weight and drag
C
thrust and lift are greater than weight
D
thrust is less than weight and drag
9) Where is the rockets center of gravity?
A
Near the nose cone
B
Near the fins
C
only on one fin
D
in the exact middle of the rocket
10) What happens if the fins are angled on a rocket?
A
It changes the center of gravity
B
The less drag
C
The faster the rocket rotates
D
The more thrust there is
11) Which is not an acting force on a rocket?
A
gravity
B
drag
C
thrust
D
lift
12) If the mass is increased, what happens to the force of the rocket?
A
force stays the same
B
force has nothing to do with mass
C
force decreases
D
force increases
13) Which is not a main part of the rocket?
A
wings
B
nose cone
C
fuselage
D
fins
*select an answer for all questions
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