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WorksheetsForces newtons laws
Total questions: 62
Worksheet time: 2hrs 57mins
Name
Class
Date
1.
a)
1st
b)
2nd
c)
3rd
d)
law of motion
2.
Equal and Opposite
a)
1st
b)
2nd
c)
3rd
d)
speed
3.
What Unit do we Measure Force in?
a)
Newtons
b)
Joules
c)
Force
d)
Kilograms
4.
With unbalanced forces, the object will move in the direction that the _______ force is being applied.
a)
larger
b)
smaller
c)
equal
d)
less
5.
Which Law? "For every action, there is an equal and opposite reaction."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
6.
Which Law? Force = Mass x Acceleration
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
7.
Any push or pull on an object.
a)
force
b)
velocity
c)
inertia
d)
momentum
8.
An archer pulls the bowstring back, then releases the string and the arrow flies forward. Pulling the string back is the...
a)
action force
b)
reaction force
c)
net force
d)
inertia
9.
An archer pulls the bowstring back, then releases the string and the arrow flies forward. The arrow flying forward is the...
a)
action force
b)
reaction force
c)
net force
d)
inertia
10.
If these boys are pulling with the same amount of force. What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
11.
It takes more force to accelerate the iron man on the left than the iron man on the right because the iron man on the left has more mass. This best describes
a)
Newton's first law, the law of inertia
b)
Newton's second law, the law of acceleration
c)
Newton's third law, the law of action reaction
d)
The law of universal gravitation
12.
For every action force , there is an equal and opposite reaction force.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
13.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
14.
When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?
a)
The cannon moving forward
b)
The cannonball moving forward
c)
The cannon moving backward
d)
The cannonball moving backward
15.
What pulls a ball back to earth?
a)
Gas
b)
Gravity
c)
Friction
d)
Molecules
16.
When a heavy football player and a light one run into each other, who exerts more force?
a)
The heavy one
b)
The light one
c)
They are equal
d)
there is no such thing as force
17.
A book rests on a table. The force of gravity pulls down on the book with a force of 20 newtons. What prevents the books from accelerating downward at 9.8 m/sec2
a)
The table presses back up on the book with an equal and opposite force of 20 newtons.
b)
The table presses back up on the book with a force greater than 20 newtons.
c)
The table and the book together are accelerating downwards at 9.8 m/sec2
d)
The inertia of the book holds it up
18.
friction is a force that acts
a)
in the same direction as the motion
b)
opposite to the direction of the motion
c)
opposite to the applied forces
d)
the same direction as the applied force
19.
What is the attraction between two objects because of their mass?
a)
Inertia
b)
Gravity
c)
Gravitational Force
d)
Weight
20.
A ball thrown at the ground bounces back up.
a)
Law of Inertia (1st Law)
b)
Law of Mass and Acceleration (2nd law)
c)
Law of Action Reaction (3rd Law)
21.
We often say that g = -9.8 m/s2. The lowercase g represents:
a)
the speed of gravity
b)
the velocity of gravity
c)
the acceleration of gravity
d)
the force of gravity
22.
An object has a mass of 10 kg. What is its weight?
a)
0.98 kg
b)
0.98 N
c)
98 kg
d)
98 N
23.
Fill in the blanks: _____ does not change from place to place, but _____ can change because of differences in the strength of gravitational pull.
a)
acceleration, weight
b)
weight, acceleration
c)
mass, weight
d)
weight, mass
24.
An unbalanced force causes:
a)
change in mass
b)
acceleration
c)
balanced forces
d)
change in time
25.
To find an object's weight on Earth, multiply the mass by:
a)
1.6 m/s2
b)
10 N
c)
9.8 m/s2
d)
3.14
26.
The same force acts on a heavy mass and a light mass. Which has a greater acceleration?
a)
The light mass
b)
The heavy mass
c)
They have the same acceleration.
d)
Neither will move.
27.
Why would one ball travel a greater distance than the other when pushed with the same amount of force?
a)
Different sizes
b)
Different weights
c)
Different masses
d)
Different forces
28.
Mass is
a)
weight
b)
force
c)
atoms and molecules that make up the object - matter
d)
can change if gravity changes
29.
What type of friction is not moving?
a)
static
b)
sliding
c)
fluid
d)
rolling
30.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
31.
A type of friction that occurs when air pushes against a moving object causing it to decelerate.
a)
surface area
b)
air resistance
c)
velocity
d)
gravity
32.
Two factors effecting the magnitude of the force of gravity between 2 objects are...
a)
Mass and Distance
b)
Mass and Matter
c)
Distance and Weight
d)
Weight and Mass
33.
What is a friction force acting upon an object on wheels?
a)
Static
b)
Sliding
c)
Rolling
d)
Fluid
34.
The type of friction that occurs when two surfaces slip past each other while there is continual force applied describes...
a)
static friction
b)
sliding friction
c)
rolling friction
d)
fluid fiction
35.
The momentum of an object depends upon the object's ___________&_____________.
a)
size and shape
b)
mass and speed
c)
mass and veloctiy
d)
mass and energy
36.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
37.
Which has more momentum: a car stopped at a red light or a bike moving at 15 mph?
a)
car
b)
bike
c)
they are equal
d)
cannot determine using the info provided
38.
When two objects collide, the Pbefore is ____________ the Pafter.
a)
more than
b)
less than
c)
equal to
d)
unrelated to
39.
When the speed of an object is doubled, its momentum
a)
remains unchanged in accord with the conservation of momentum.
b)
doubles
c)
quadruples
d)
decreases
40.
What is the unit for momentum?
a)
m/sec
b)
kg/sec
c)
kg/m
d)
kg m/sec
41.
Momentum is large when mass is large, when ___________ is large, or both are large.
a)
speed
b)
direction
c)
velocity
42.
Momentum is the product of _________________ and velocity.
a)
weight
b)
mass
c)
diretion
43.
What is the momentum of a 15-kg rock falling at 3 m/s?
a)
5 kg m/s
b)
18 kg m/s
c)
45 kg m/s
44.
Which of the following has the least amount of momentum?
a)
An ant walking along the ground
b)
An ant at rest
c)
An elephant walking
d)
An elephant running
45.
In any collision
a)
total momentum is not conserved.
b)
total kinetic energy is conserved.
c)
total momentum is conserved.
d)
total momentum is not conserved but total kinetic energy is conserved.
e)
total momentum and total kinetic energy are conserved and the masses are equal.
46.
A runner has a momentum of 670 kg m/s and is traveling at a velocity of 9 m/s. What is his mass?
a)
74.4 kg
b)
6030 kg
c)
0.0134 kg
d)
80 kg
47.
How do you calculate the net momentum of two or more objects?
a)
Multiple them together
b)
Add them together
c)
Make them a cake
d)
Sing them lil pump lullabys
48.
Which of the following is an example of friction that is helpful?
a)
Brakes used on a bike
b)
Tires from a car on the road
c)
Tread on the bottom of your shoes
d)
All are examples that are helpful
49.
Sally experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
50.
Wheels on a skateboard most likely experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
51.
The amount of friction depends on the weight of the objects pressing together.
a)
True
b)
False
52.
If a bullet is horizontally shot at the same moment another bullet is dropped from the same height, which will hit the ground first?
a)
Shot Bullet
b)
Dropped Bullet
c)
Hit at Same Time
53.
The direction of centripetal force is always directed in what direction?
a)
Up
b)
Down
c)
Towards the center of the circle
d)
Across
54.
Your weight will be the greatest:
a)
On the smallest planet.
b)
On the largest planet.
c)
On Earth.
d)
Weight never changes.
55.
As distance separating the objects increases the gravitational force
a)
increases
b)
decreases
c)
stays the same
56.
Gravity is a(n) __________ force between two objects with mass.
a)
Attractive
b)
Replusive
c)
Tangential
d)
Resistive
57.
What is the path of a projectile?
a)
Wavy line
b)
Hyperbola
c)
Parabola
d)
Projectiles do not follow a predictable path
58.
What is true about the vertical motion of a projectile?
a)
It accelerates downward at 9.8 m/s2
b)
It accelerates upward at 9.8 m/s2
c)
It moves at a constant vertical velocity
d)
It cannot be determined
59.
Motion when only gravity acts on an object.
a)
free fall
b)
terminal velocity
c)
momentum
d)
gravitron
60.
An object that is thrown
a)
terminal
b)
ball
c)
free fall
d)
projectile
61.
A measure of how much matter is in an object. SI unit grams
a)
weight
b)
mass
c)
volume
d)
length
62.
Force caused when surfaces rub.
a)
friction
b)
gravity
c)
momentum
d)
weight
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