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Mechanics I Review
Test Description: Review of motion(speed, velocity, acceleration), forces and Newton's Laws of motion
Instructions: Answer all questions to get your test result.
1) What is the factor(label) on the y-axis, when illustrating acceleration?
A
acceleration (m/s^2)
B
distance (m)
C
velocity (m/s)
D
time (s)
2) A bowling ball hits the pins, sending the pins flying for a strike. This is an example of Newton's ____ Law of Motion.
A
Fourth
B
First
C
Second
D
Third
3) Which object has more momentum?
A
An elephant sitting still
B
A mouse running 1 m/s
C
A mouse sitting still
D
An elephant running 5 m/s
4) Which is an example of velocity?
A
7 m East
B
3 m/s/s
C
7 m/s East
D
4 m/s
5) In a game of tug of war, Team Dog is pulling the rope at a force of 50 N to the right. Team Cat is pulling the rope at a force of 25 N to the left. Calculate the net force.
A
25 N right
B
75 N left
C
50 N right
D
25 N left
6) Your feet pushes down on the floor and the floor pushes up at your feet as you walk. This is an example of Newton's ___Law of Motion
A
Second
B
Third
C
Fourth
D
First
7) The mass of a rocket on Earth is 300 kg. The rocket goes to the moon, what happens to the mass?
A
the mass decreases
B
the mass depends on the gravity
C
the mass increases
D
the mass remains the same
8) ____ is the force that opposes motion.
A
Velocity
B
Momentum
C
Acceleration
D
Friction
9) You would weigh more on Jupiter than on the Earth. What is the cause for the change in weight?
A
the gravitational pull of the Earth is greater than Jupiter
B
you have more mass on Jupiter
C
the statement is false. Weight is constant.
D
the gravitational pull of Jupiter is greater than the Earth
10) Which force does not cause a change in motion?
A
gravity
B
balanced force
C
unbalanced force
D
friction
11) Rolling, fluid and sliding are types of ____ friction
A
force
B
static
C
kinetic
D
net
12) On a distance-time graph, a horizontal slope indicates ___.
A
constant acceleration
B
time has stopped
C
no motion, at rest
D
constant speed
13) A moped, which is out of gas, has a mass of 100 kg is being pushed by its owner at an acceleration of 0.2 m/s^2. How much force is being applied to make the moped move?
A
102 N
B
2 N
C
20 N
D
100 N
14) The law of acceleration uses the formula f = ma. It is also known as Newton's ____ Law of Motion.
A
First
B
Fourth
C
Second
D
Third
15) Calculate the speed of a cheetah who runs 35 meters in 7 seconds.
A
39 m/s
B
28 m/s
C
5 m/s
D
245 m/s
16) The gravitational force between objects depends on ____.
A
the mass of the objects and the distance between the objects
B
the time it takes to move from one object to the next
C
the mass of the objects
D
the distance between the objects
17) The law of inertia is associated with Newton's ___ Law of Motion.
A
First
B
Fourth
C
Third
D
Second
18) All objects in the universe atrract each other through gravitational force is an overview for ____.
A
Newton's Second Law of Motion
B
Newton's Law of Universal Gravitation
C
Newton's Third Law of Motion
D
Newton's First Law of Motion
19) The law of interaction or action-reaction is better known as Newton's ____ Law of Motion.
A
Third
B
Second
C
Fourth
D
First
20) ____ is when an object changes position in a certain amount of time in relation to a reference point.
A
Motion
B
Acceleration
C
Speed
D
Velocity
*select an answer for all questions
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