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WorksheetsNewton's Laws
Total questions: 20
Worksheet time: 21mins
Name
Class
Date
1.
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.
2.
A sled sliding on a flat, icy surface with a constant velocity is 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.
3.
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
4.
Forces always act in equal and opposite pairs.
a)
Newton's 1st Law
b)
Newton's 3rd Law
c)
Newton's second law
5.
Which law explains when a magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.
a)
Law 1
b)
Law 3
6.
Which has more Inertia? (and more force to move)
a)
Truck
b)
Ant
7.
Newton's 1st law is often called the _______.
a)
Newton's 2nd law
b)
action-reaction law
c)
law of equality
d)
law of inertia
8.
A person is pushed forward into their seatbelt when a car stops. Which of Newton's laws explains this motion?
a)
1st law
b)
2nd law
c)
2 and 3 law
d)
3rd law
9.
When air rushes out of a balloon and it moves upward. This is an example of which Law of Motion.
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
10.
A person steps out of the boat and onto the dock. As the person moves forward onto the dock, the boat moves backward. Which statement best describes the backward motion of the boat as the person steps forward?
a)
For every action there is an equal and opposite reaction.
b)
Every mass exerts a force on every other mass.
c)
An object at rest tends to stay at rest.
d)
Friction opposes the motion of an object.
11.
If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration? (F=ma)
a)
The one with a mass of .78 kg will have the greatest acceleration.
b)
The one with a mass of .52 kg will have the greatest acceleration.
c)
They will both accelerate at the same rate.
12.
The SI units for force are...
a)
Kilograms
b)
Newtons
c)
Meters per second
d)
Pounds
13.
An object will not have any inertia if it is _?_
a)
Accelerating
b)
Moving in a circle
c)
In space
d)
… Nonsense! All objects have inertia
14.
Newton's second law states that F=ma (force is mass times acceleration) which example would have the GREATEST?
a)
a 10 kg ball thrown with a 50 N force
b)
a 1 kg ball thrown with a 0.5N force
c)
a 50 kg student launched by a 100 N catapult
d)
a) a 500 kg car accelerated by 1000 N from the engine
15.
267.5 N unbalanced force applied to push a stuffed chair across the room, causing an acceleration of 4.2 m/s2. What is the mass of the chair?
a)
26.75 kg
b)
63.69 kg
c)
263.3 kg
d)
1123.5 kg
16.
An empty truck and a fully loaded truck are next to each other at a traffic light. When the light turns green, the lighter truck increases speed more quickly. Which of these best explains this situations
a)
Newton's first law
b)
Newton's second law
c)
Newton's third law
d)
Conservation of momentum
17.
A measure of the quantity of matter is
a)
density
b)
mass
c)
weight
d)
force
18.
A hammer drives a nail into a piece of wood. Identify an action-reaction pair in this situation.
a)
The nail exerts a force on the hammer; the hammer exerts a force on the wood.
b)
The hammer exerts a force on the nail; the wood exerts a force on the nail.
c)
The hammer exerts a force on the nail; the nail exerts a force on the hammer.
d)
The hammer exerts a force on the nail; the hammer exerts a force on the wood.
19.
When an object is at rest/stationary
a)
There are no forces acting on it
b)
There are forces acting on it but these forces are balanced
c)
There is just one force acting on it, gravity
20.
Newton's second law of motion states that an unbalanced force that acts upon an object causes it to:
a)
accelerate
b)
not accelerate (keep the same velocity
c)
have a velocity
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