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Motion & Simple Machines 1
Test Description: Force, Newton's laws of motion & simple machines
Instructions: Answer all questions to get your test result.
1) A person in a head-on collision who is not wearing a seat belt continues to move forward at the original speed of the car because of ____.
A
weight
B
gravity
C
inertia
D
friction
2) Newton\'s 1st law of motion states that an object stays at rest unless a(n) ___ acts on it.
A
strong force
B
gravitational force
C
outside force
D
balanced force
3) Which one of the following objects has the greatest inertia?
A
pencil
B
bowling ball
C
toothpick
D
baseball
4) A force is which one of these?
A
none of these
B
a push
C
a pull
D
a push or a pull
5) Force is measured in which units?
A
meters
B
degrees
C
kilograms
D
newtons
6) ____ is done only when an object moves in the direction of the applied force.
A
Inertia
B
Work
C
Effort
D
Friction
7) A force is exerted on a box and an equal and opposite force is exerted by the box. What explains this?
A
Newton's 3rd law of motion
B
law of conservation of energy
C
Newton's 2nd law of motion
D
Newton's 1st law of motion
8) A(n) ___ is a rod or plank that pivots about a fixed point.
A
lever
B
pulley
C
wedge
D
axle
9) John is pushing a table forward. Erin pushes the table in the opposite direction and the table stops moving. What amount of force is Erin pushing the table with?
A
the same amount of force as John
B
double the amount of force as John
C
a lesser amount of force than John
D
a greater amount of force than John
10) According to Newton\'s second law of motion, ____.
A
acceleration = mass / net Force
B
acceleration = speed x mass
C
acceleration = net Force / mass
D
acceleration = mass x net Force x speed
*select an answer for all questions
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