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Physics Newton's Laws Review Flashcards | StudBud
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Physics Newton's Laws Review
Physics Newton's Laws Review
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physics
Flashcards
12 cards
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Questions
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Answers
1
A fisherman pulls his 10 kg boat at a constant speed with 12 N of force. The force of friction
is 120 N
can't be found
is 12 N
is 1.2 N
2
The frictional force on an object depends on its
type of surface only
normal force only
type of surface and normal force
surface area only
3
Which Law says, "acceleration is directly proportional to net force and inversely to the mass?
Newton's First Law
Newton's Law of Gravity
Newton's 3rd Law
Newton's 2nd Law
4
A 50 kg asteroid is brought from space back down to Earth. The mass on Earth is
500 kg
5 kg
25 kg
50 kg
5
Which of Newton's Laws states that for every force, there is an equal but opposite force?
1st
Universal Law of Gravity
2nd
3rd
6
The inertia of an object depend's on the object's
mass
weight
velocity
force
7
A 75 kg box and a 25 kg box are both pushed with 100N of force. The 75 kg block's acceleration
is the same as the 25 kg box
is greater than the 25 kg box
is less than the 25 kg box
can't be determined
8
A stone is thrown against a window, shattering it. The force on the stone
is less then the force on the window
is 0; the forces cancel out
is the same as the force on the window
is greater than the force on the window
9
Which coefficient of friction below would yield the highest force of friction?
0.85
0.50
15 N
0.70
10
What is the approximate normal force acting on a 200 kg object on level ground?
2 N
20 N
2000 N
200 N
11
A penny is dropped from a sky-scraper and reaches terminal velocity. What below is true?
the velocity of the penny is constant
all answers are true!
the air resistance equals the penny's weight
the penny's acceleration is 0
12
Suppose a baseball is hit by a bat. What forces are on the ball after it is struck?
air resistance and gravity
air resistance
force of the bat, air resistance, and gravity
force of the bat and air resistance