WorksheetsUnit 1 Exam: Newton's Laws of Motion
Total questions: 23
Worksheet time: 1hrs 9mins
For a force on an object, there is an equal and opposite force.
Newton’s First Law of Motion
Newton’s Second Law of Motion
Newton’s Third Law of Motion
Newton's Fourth Law of Motion
According to Newton's second law of motion, if a rigid body of unchanging mass is observed accelerating, what must be happening?
A force was once applied but is now not being applied.
The mass must be changing.
Balanced forces act "all crazy!!!" on an object.
A force is being applied to the mass.
According to Newton's First Law, unless acted upon by an unbalanced force, an object at rest will ______________________________.
float into outer space
stay at rest
get mold on it
miss the bus
Why is it harder for Iditarod race dogs to pull a sled filled with a winter's worth of supplies than it is for them to pull an empty sled?
Because Iditarod dogs go on strike when they have to work harder
The mass of the sled full of winter supplies is greater than the mass of the empty sled
The sled full of winter supplies is actually easier to pull
It should be equally as hard to pull the sled full of winter supplies as it is to pull the empty sled
You pull a wagon with your Great Dane named 'Baby' in it. How could you accelerate the rate at which you can pull the wagon?
pull the wagon with less force
Pull the wagon with more force
Have Baby gain weight
Put a bag of Baby's dog food in the wagon
Your Siberian Tiger, Tiny, is pulling on his play rope that is tied to a tree... Tiny is pulling with a force of 300 N to the East and the rope and tree exert a force of 300 N to the West. What is true about the motion of Tiny?
he isn't moving
he is accelerating
he is slowing down
his speed is constant
An animal crate with a male White Rhino inside has a total mass of 2000 kg and is pushed with a horizontal acceleration of 5 m/s2. What is the net force that is acting on the crate?
400 N
1000 N
10,000 N
1995 N
Forces have ___________ and ___________ .
magnitude / multiverse
direction / an invisibility cloak
magnitude / direction
mothers / fathers
When forces are balanced, ________________________________ .
frogs levitate in the air
the object does not move
there is peace throughout the galaxy
Jedi knights are no longer needed
A(n) ________ is a push or a pull that causes an object to undergo a change in speed, a change in direction, or a change in both.
magical spell
resistance
power
force
What is the net force?
50 N to the left
150 N to the right
50 N to the right
200 N down
What is the net force?
50 N to the right
200 N to the left
50 N to the left
125 N to the left
List the three (3) possibilities that an object might demonstrate when subjected to an unbalanced force:
(You must choose 3 answers)
Speed Up
Leave Our Atmosphere
Slow Down
Levitate In The Air
Change Direction
What is the formula for the 2nd law of motion?
a = lw
F = mama
F = ma
F = llama
According to Newton's second law of motion, if a rigid body of unchanging mass is observed accelerating, what must be happening?
A force was once applied but is now not being applied.
The mass must be changing.
Unbalanced forces act "all crazy!!!" on an object.
A force is being applied to the mass.
According to Newton's 3rd Law of Motion, for every ____________ there is an equal and opposite ___________________.
action / reaction
negative / positive
action / protraction
Martian / Earthling
The nozzle of a rocket is pointed downward so that as fuel is ignited, the exhaust pushes downward. Why is this arrangement necessary for a rocket to function properly?
The rocket is protected from the heat of the exhaust.
Burned fuel can be collected on the ground.
As fuel is combusted, the rocket pushes the gases backward and the gases push the rocket forward.
This allows the rocket to be steered properly.
According to Newton’s Third Law, if someone jumps off a skateboard, the skateboard will roll backward because -
the mass of the skateboard is the same as the mass of the person jumping off.
the pull of gravity on the person is the same as on the skateboard, regardless of size.
the air resistance on the person is great and the friction on the skateboard is small.
for the force that sent the person forward, there is an equal force pushing back on the skateboard.
A ball bat hits aball with a force of 100 Newtons. What is the force and direction exerted by the ball on the bat?
100 Newtons, same direction
100 Newtons, opposite direction
200 Newtons, same direction
200 Newtons, opposite direction
Observe the motion of the washer as the notecard is pulled quickly out from under it. Which of Newton's Laws does this represent?
Observar el movimiento de la moneda mientras saca rápidamente el papel de debajo. ¿Cuál de las leyes de Newton representa esto?
Newton's 1st Law, inertia
Newton's 2nd Law, Force = m x a
Newton's 3rd Law, action/reaction
A 20 kg bike accelerates at 10 m/s2. what was the force
F = m x a
25 Newtons
20 Newtons
200 Newtons
10 Newtons
Which one of Newton's laws is shown
3rd law
2nd law
1st law
