WorksheetsSPS8b - Newton's Laws
Total questions: 40
Worksheet time: 44mins
Name
Class
Date
1.
An ice skater at rest pushes against a sled at rest, causing both the skater and sled to move away from each other with different accelerations. This is an example best described by
a)
Newton’s first law of motion for objects at rest.
b)
Newton’s first law of motion for objects in motion.
c)
Newton’s second law of motion.
d)
Newton’s third law of motion.
2.
How does Newton’s third law explain how a rocket takes off?
a)
The rocket’s acceleration is positive, while the gasses acceleration is negative but the direction is the same.
b)
The rocket is at rest until ignition.
c)
The hot gasses move in one direction, while the rocket moves in the opposite direction but with equal force.
3.
For every action there is an equal and opposite reaction; equal in force and opposite in direction.
a)
Newton’s first law of motion
b)
Newton’s second law of motion
c)
Newton’s third law of motion
4.
If a force of 26 N is exerted on two balls, one with a mass of 5 kg and the other with a mass of 8 kg, which ball will have the greater acceleration? (F=ma)
a)
The one with a mass of 8 kg will have the greatest acceleration.
b)
The one with a mass of 5 kg will have the greatest acceleration.
c)
They will both accelerate at the same rate.
5.
A greater applied force is required to move an object with a greater mass than one with a smaller mass.
a)
True
b)
False
6.
If you are driving forward and suddenly break, what would happen to your body and which law does that demonstrate?
a)
go back, Law of inertia
b)
move forward, Law of inertia
7.
An object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an outside force. Which law does this describe?
a)
Law of inertia
b)
Law of acceleration
c)
Law of action - reaction
8.
In a football game, two players tackle each other so hard that they both fly in opposite directions after they hit each other. What law of motion is this an example of?
a)
Law of inertia
b)
Law of action - reaction
c)
Law of acceleration
9.
A student leaves a pencil on a desk and it stays there until I pick it up.
a)
Law of inertia
b)
Law of acceleration
c)
Law of action - reaction
10.
Which law explains when a magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.
a)
Law of inertia
b)
Law of acceleration
c)
Law of action - reaction
11.
A person in car slides to the right when going through a very sharp left turn on the highway.
a)
Law of inertia
b)
Law of acceleration
12.
If you exert a net force of 8 N on a 2-kg object, what will its acceleration be?
a)
2 m/s2
b)
4 m/s2
c)
16 m/s2
d)
10 m/s2
13.
The swimmer moves her hand down and to the left and her body goes forward to the right.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
14.
A force of 20 N acts upon a 5 kg block. What is it's acceleration
a)
4 m/s2
b)
100 m/s2
c)
10 m/s2
d)
5 m/s2
15.
An object at rest will _______ if no outside forces are applied.
a)
Stay at rest
b)
Increase Velocity
c)
Decrease Mass
16.
The SI units for force are...
a)
Kilograms
b)
Newtons
c)
Meters per second
d)
Pounds
17.
If an action force is a cue ball (white) hitting a billiard ball (various colors) when playing pool, then the reaction force is
a)
exerted on the table
b)
exerted on all the other billiard balls.
c)
not present
d)
exerted by the billiard ball on the cue ball.
18.
According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will
a)
remain in motion.
b)
eventually come to a stop.
c)
change its momentum.
d)
accelerate.
19.
Which of the following explains the difference between speed and velocity?
a)
One has motion, and the other does not.
b)
One has direction, and the other does not.
c)
One involves time, and the other does not.
d)
One involves acceleration, and the other does not.
20.
A hiker’s velocity begins at 1.8 m/s uphill and changes to 1.5 m/s uphill. How do you know that the hiker has a negative acceleration?
a)
His direction changed.
b)
His direction was unchanged.
c)
His speed increased.
d)
His speed decreased.
21.
Acceleration is caused by a force acting on a mass.
a)
Newton’s first law of motion
b)
Newton’s second law of motion
c)
Newton’s third law of motion
22.
F=MA
An object of mass 10 kg is accelerated upward at 2 m/s2. What force is required?
An object of mass 10 kg is accelerated upward at 2 m/s2. What force is required?
a)
20 N
b)
2 N
c)
5 N
d)
0 N
23.
If you are driving forward and suddenly break, what would happen to your body and which law does that demonstrate?
a)
go back, 1st Law
b)
move forward, 1st Law
24.
What force slows objects down and keeps them from moving?
a)
Friction
b)
Acceleration
25.
If there is a big mass, it would need a stronger force to accelerate it. Which law does this describe?
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
26.
One object has twice as much mass as another object. The first object also has twice as much...
a)
velocity
b)
inertia
27.
A soccer player kicks a ball with their foot and their toes are left stinging.
a)
2nd Law
b)
3rd Law
28.
Two students are in a baseball game. First student hits a ball hard and it has a greater acceleration than the 2nd student who bunts the ball lightly.
a)
1st Law
b)
2nd Law
29.
Pushing a child on a swing is easier than pushing an adult on the same swing.
a)
1st Law
b)
2nd Law
30.
Which law states that if I push against a wall, the wall pushes against me?
a)
Law 2
b)
Law 3
31.
Which has more Inertia? (and more force to move)
a)
Truck
b)
Ant
32.
A person in car slides to the right when going through a very sharp left turn on the highway.
a)
1st Law
b)
2nd Law
33.
In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N.What is the resultant force?
a)
-50N to the left.
b)
350N to the left.
c)
350N to the right.
d)
50N to the right.
34.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
35.
What is the net force?
a)
30 N left
b)
25 N right
c)
5 N left
d)
55 N right
36.
How will this object move?
a)
It won't move.
b)
It will move to the right.
c)
It will move to the left.
37.
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
38.
A(n) __________ is a push or pull.
a)
newton
b)
acceleration
c)
force
d)
momentum
39.
A ____ force is the total force felt by an object.
a)
sum
b)
net
c)
strong
d)
balanced
40.
In order to be ____ forces, their effects must cancel each other out and not cause a change in an object's motion.
a)
balanced
b)
strong
c)
weak
d)
normal
100 %
