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