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Forces And Motion
Test Description: Forces and Motion
Instructions: Answer all questions to get your test result.
1) Net Force
A
The overall force acting on an object.
B
A force that acts between two masses.
C
Accelerates a 1kg mass 1 m/s per second.
D
The force that opposes motion.
2) Inertia
A
The tendency of an object to resist a change in its motion.
B
An object in motion, will stay in motion. An object at rest will stay at rest.
C
All of these are correct.
D
Is solely based on the mass of an object.
3) Weight
A
Determines the amount of inertia within an object.
B
The force of gravity acting upon a mass.
C
The amount of mass something has.
D
How heavy something is.
4) Newton's Second Law
A
Mass x Velocity
B
Net Force of an object is greater than zero.
C
F=ma
D
An object in motion, stays in motion. An object at rest, stays at rest.
5) Newton
A
N = kg x m/s^2
B
The amount of inertia acting upon an object.
C
F = ma
D
N = kg x m/s
6) The acceleration of an object subjected to Earth's gravity.
A
8.9 m/s^2
B
7.8 m/s^2
C
9.8 m/s^2
D
9.7 m/s^2
7) Law of Conservation of Momentum
A
Momentum is mass multiplied by velocity.
B
An object at rest stays at rest.
C
Inertia must be conserved.
D
No net force acts on an object, the total momentum of the system does not change.
8) Momentum
A
= mass x m/s^2
B
= 1kg x 1m/s per second
C
= ma
D
= mv
9) Momentum
A
is lost when two objects collide.
B
is destroyed.
C
is always transferred and conserved.
D
escapes within a closed system.
10) Action and Reaction forces
A
All are correct.
B
Cannot exist alone.
C
Never cancel.
D
equal in size and opposite in direction.
*select an answer for all questions
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