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Physics Test 2
Test Description: Test 2
Instructions: Answer all questions to get your test result.
1) 1. What is the first law of Newton?
A
Force is equal to mass times acceleration
B
Energy is not created or destroyed. Only conserved.
C
The law of inertia.
D
Every action has an equal but opposite reaction.
2) What is the second law of Newton?
A
Force is equal to mass times acceleration
B
Energy is not created or destroyed. Only conserved.
C
Every action has an equal but opposite reaction
D
The law of inertia
3) What is the third law of newton?
A
Every action has an equal but opposite reaction
B
Force is equal to mass times acceleration
C
The law of inertia
D
Energy is not created or destroyed. Only conserved.
4) What is the Law of Conservation of energy?
A
The law of inertia.
B
Energy is not created or destroyed. Only conserved.
C
Force is equal to mass times acceleration
D
Every action has an equal but opposite reaction.
5) Which of the following represents a type of energy that has motion?
A
Intrensic
B
Potential
C
Intentional
D
Kinetic
6) Which of the following represents a type of energy that is stored and has to do with height?
A
Intentional
B
Kinetic
C
Potential
D
Intrensic
7) Which of the following is the formula for potential energy?
A
F=ma
B
Pe = Mgh
C
E = mc2
D
Ke = (mv2) / 2
8) What does total energy equal to?
A
Etotal = mgh
B
Etotal = Ke + Pe
C
Etotal = M1 + M2
D
Etotal = E1 + E2 + E3
9) Which of the following if the force that attracts a body toward the center of the earth, or toward any other physical body having mass?
A
Gravity
B
momentum
C
inertia
D
massivity
10) Which of the following is inertia?
A
An object at rest will stay at rest until acted upon by another force
B
neither a or b
C
An object in motion will stay in motion until acted upon by another force.
D
Both a and b
11) Equal forces acting on an object in opposite directions
A
Balanced forces
B
Unbalanced forces
C
friction
D
gravity
12) Forces that produce a non-zero net force, which changes an object motion
A
balanced force
B
friction
C
gravity
D
unbalanced force
13) What would be the net force of an object with a mass of 50kg?
A
490N
B
490J
C
5.10N
D
5.10J
14) What would be the mass of an object with 490N of force?
A
4802kg
B
4802J
C
50kg
D
50J
15) What is the unit for force?
A
m
B
N
C
m/s
D
kg
16) What is the unit for energy?
A
m/s
B
N
C
s
D
J
17) What is the velocity of an object that has 490J of kinetic energy and a mass of 50kg?
A
10.25m/s
B
7.78m/s
C
4.43m/s
D
Answer is not here
18) What is the height of an object that has 500J potential energy and a mass of 20kg?
A
4.52m
B
2.55m
C
6.87m
D
Answer is not here
*select an answer for all questions
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