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Worksheetsnewton
Total questions: 84
Worksheet time: 2hrs 45mins
The picture shows an aerialist walking on a tightrope and holding a balancing bar. An action–reaction pair of forces exists between —
the aerialist’s feet and the rope
the rope and the balancing bar
the two ends of the rope
the aerialist’s arms and legs
Four boxes are sliding with constant speed before each box experiences an unbalanced force of 8 N. Which box would experience the greatest acceleration when the unbalanced force is applied?
The box with a mass of 2kg
The box with a mass of 4kg
The box with a mass of 6kg
The box with a mass of 8kg
Two cars with different masses travel at the same speed down a hill toward a stop sign. What will happen when both cars apply brakes at the same time to stop?
The car with the smaller mass will require less force to stop than the car with the larger mass.
The car with the larger mass will maintain its velocity while traveling down the hill.
The car with the smaller mass will take longer to stop than the car with the larger mass.
The car with the larger mass will have less inertia than the car with the smaller mass.
Sometimes tectonic plates do not move easily past one another, and the plates become stuck. Forces build up, and when the plates finally move, tension is released, as shown below. The sudden movement of the plates is caused by —
the mass of the plates
the weight of the plates
unbalanced forces
gravitational force
The unusual strength of a glue makes it able to hold a heavy object, or load, as shown in the diagram below. If the load exerts a strong downward force, the glue —
destroys the force
exerts a stronger downward force
causes the load to accelerate upward
exerts an upward force that is equal to the downward force
NASA’s space shuttle program was active from 1981 until 2011. The photograph shows rockets carrying a space shuttle off the launchpad. How can Newton’s law of action–reaction best be applied to explain the movement of a rocket?
As the fuel burns, gases push against the rocket, moving it upward.
As the fuel burns, gases move out of the rocket and reduce air resistance.
As the fuel burns, the mass of the rocket decreases.
As the fuel burns, the rocket moves faster.
A leaf fell from a tree branch. The path it followed is shown in the diagram below. Which of these best describes why the leaf fell in a crooked path instead of straight down?
Objects with irregular shapes never fall in straight lines.
Air currents and gravity applied changing and unbalanced forces to the leaf.
The upward force of the air on the leaf was greater than the downward force of gravity.
Once the leaf was in motion, it continued moving in the same direction because the forces were balanced.
Inertia is most often experienced when…
Earth stop rotating for a second
a moving vehicle is stopped
It rains
Rockets are launched
What is one of the benefits of wearing a seat belt?
It keeps you in from falling out of the car.
It allows you to share the same motion as the car
It prevents car accidents
It is connected to air bags
What will happen to an object if it is put into motion in space?
It will eventually stop
It will continue to move until it is acted on by an unbalanced force
It will speed up
It will burst due to high pressure
The rate at which an object’s velocity changes is _____
Acceleration
Speed
Time
Oscillation
Your bicycle begins to slow down when you stop peddling. What is at work?
Weight
Friction
Centrifugal Force
All of the above
A dog’s wagging tail knocks over the cup of pencils sitting on your desk. What kind of force is his tail?
Balanced
Unbalanced
Frictional
Angular
What is the force of a ball that has a mass of 150 g hitting the ground from a height of 20 meters?
1500 N
1.5 N
3000 N
3 N
Newton’s second law of motion can be written as
F = ma
a = F/m
F = mc2
F = am
Which of the following would speed up or change directions more quickly if the same force is applied to all?
Golf ball
Marble
Football
Bowling ball
What is another name for Newton’s 3rd law?
Law of Acceleration
Law of Inertia
Law of Action / Reaction
When two equal forces act in opposite directions on an object, they are called ______________________.
frictional force
balanced force
centripetal force
gravitational force
When an unbalanced force acts on an object, the force ______________________.
changes the motion of the object
is cancelled by another force
does not change the motion of an object
is equal to the weight of the object
The resistance of an object to any change in its motion is called ______________________.
inertia
friction
gravity
weight
According to Newton’s second law of motion, force is equal to mass times ______________________.
inertia
weight
acceleration
direction
What is the speed of a car that traveled 0.2 km in 12 seconds?
64 m/s
166.6 m/s
16.66 m/s
0.16 m/s
If you are test-driving a Bugatti Veyron and you go from 0 km/hr to 124 km/hr in 3.7 seconds, what was your acceleration?
9.30 m/s2
90.03 m/s2
-9.30 m/s2
0.930 m/s2
What is velocity?
the quickness of an object
the location of an object
acceleration
speed in a specific direction
Velocity is both ____ and _____.
speed , direction
direction, mass
volume, density
direction, magnitude
The speed boats speed increased from 0m/s to 24m/s in a time span of 12 seconds.
4 m/s²
2 m/s²
8 m/s²
When the air resistance or drag is equal and opposite to the weight of the object you would call this
terminal velocity
gravitational weight
flux capacitor
rotational inertia
An object in free fall _________________ as it falls
gets slower
gets faster
has a constant speed
To create the most air drag (resistance) , a parachute needs to
have a small surface area
be light
have a lot of surface area
be heavy
When a parachutist jump out of a plane,
he will fall down at constant speed.
he decelerates.
his speed increase with time.
he float on the air.
An airplane flies east at 400 km/hr. In which direction is the air resistance force acting upon the airplane?
East
West
Up
Down
The momentum of a 1,200 kg car is 240 kg m/s. At what velocity is the car traveling?
0.2 m/s
288,000 m/s
5 m/s
