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Unit 4 Test 2
Test Description: Test
Instructions: Answer all questions to get your test result.
1) Divide the total distance traveled by the total time is how to calcualte
A
average acceleration
B
average motion
C
average speed
D
average velocity
2) How does Newtons third law explain how a rocket takes off?
A
The hot gasses cause global warming.
B
The rocket is at rest until ignition
C
The hot gasses move in one direction, while the rocket moves in the opposite direction but with equal force.
D
The rockets acceleration is positive, while the gasses acceleration is negative but the direction is the same.
3) The tendancy of an object to resist any change of motionis known as _____.
A
balance
B
inertia
C
mass
D
force
4) The amount of matter in an object is called its____.
A
force
B
mass
C
balance
D
weight
5) The greater the mass of an object,
A
the more space it takes up.
B
the greater the inertia.
C
the less force it can excert.
D
the more balanced it is.
6) The force of gravity of a person or object at the surface of a planet is known as?
A
air resistance
B
inertia
C
mass
D
weight
7) A book is sitting on a dashboard of a car that is stopped at a traffic light. As the car starts to move forward, the book slides off the dashboard. Pick the most correct explanation.
A
The object had inertia
B
a supernatural force took over.
C
There was grease on the dashboard
D
Air resistance made the book move backward.
8) According to Newtons third law of motion, when a hammer strikes and exerts a force on a nail, the nail
A
creates a balanced force
B
exerts an equal and opposite force back on the hammer
C
disapears into the wood
D
moves at a constant speed
9) Pick the best example of newtons third law in action
A
A rocket taking off from earth
B
Both B and C
C
A rocket sitting on the ground
D
A rocket that is accelerating through space
10) Pick the best example of Newtons second law in action
A
Both B and C
B
A rocket taking off from earth
C
A rocket sitting on the ground
D
A rocket that is accelerating through space
11) Pick the best example of Newtons First Law in action
A
A rocket sitting on the ground
B
A rocket acceleration through space
C
Both B and C
D
A rocket taking off from earth
*select an answer for all questions
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