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WorksheetsNewtons Three Laws
Total questions: 50
Worksheet time: 32mins
When Forces are balanced, do objects stay at rest?
Yes
No
Obama
Maybe
When forced are unbalanced, do objects stay in motion?
Yes
No
Fortnite
Maybe
When Forces are unbalanced, is the acceleration dependent on the Net Force or the Mass of the Object?
Both
Mass of the Object
The Net Force
Neither
When forces are balanced, does the ball accelerate because of it being balanced?
No
Yes
Obama
Maybe
For every action there is an equal an opposite reaction.
Newton's First Law
Newton's Second Law
Newton's Third Law
Obama :)
When you move the Cradle, which Law counts into the motion of the Balls?
First Law
Second Law
Third Law
All of the Laws
According to Newtons first law of motion, an object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force. What is this law often called?
law of force
law of rest
law of balance
law of inertia
What does the first law of motion mean?
there is a natural tendency of objects to keep on doing what they're doing.
all objects will change no matter what they're doing
force causes objects to resist change in motion
In the absence of a (an)________________ force, an object in motion will maintain this state of motion.
balanced
unbalanced
According to Newton's second law, _______________ is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).
motion
acceleration
force
Which of the following mathematical equations expresses Newton's second law of motion?
Mass + Force = Acceleration
Force = Mass x Acceleration
Mass = Force x Acceleration
none of the above
True or False? The third law of motion states that for every action there is an equal and opposite re-action.
True
False
What does the third law of motion mean?
whenever an object pushes another object it gets pushed back in the opposite direction equally hard.
force will always move a heavier object faster than a lighter object
Which law explains why we need to wear seat belts?
first law of motion
second law of motion
third law of motion
Which law explains how rockets are launched into space?
first law of motion
second law of motion
third law of motion
none of the above
The diagram below represents two tug-of-war teams pulling on a rope and the forces for this situation. Group A applies a force of 420 N, and group B applies a force of 380 N.
40 N to the right
40 N to the left
800 N upward
800 N downward
Which of the following describes a vehicle moving at a constant velocity?
A go-cart races at 50 km/hr around a circular track.
A bicycle slows down as it approaches an intersection.
A truck travels north at 70 km/hr on a straight road.
A car steadily speeds up after a traffic light turns green.
The free-body force diagram below represents two forces, F1 and F2, acting on a hot air balloon as it rises through the air. If the net force acting on the balloon is 120 N upward, what is the magnitude of F2?
980 N
1100 N
1200 N
1220 N
The free-body force diagram below represents four forces acting on an object. What is the net force on the object?
0 N
2 N to the right
6 N along the vertical axis
18 N in all directions
What is the net force that acts on a 5 kg object accelerating at 2 m/s2?
2.5 N
5 N
10 N
50 N
The diagram below shows the top view of two carts with different masses on a frictionless surface.
The carts are pushed from rest, and they reach the finish line at the same time. Which of the following statements describes and explains the forces applied to the carts?
Equal force is required to push the carts because they move on a frictionless surface.
Equal force is required to push the carts because they reach the finish line at the same time.
A greater force is applied to cart Y because it accelerates at the same rate as cart Z but has less mass.
A greater force is applied to cart Z because it accelerates at the same rate as cart Y but has more mass.
A free-body diagram is shown below.
What is the net force acting on this object?
4 N right
6 N left
6 N right
10 N right
A toy truck powered by a battery is accelerating to the right. A string with negligible mass is attached to the truck. The diagram below shows the forces acting on the truck.
If a child pulls the string to the left, what force must the child exert to make the toy truck move to the right at a constant velocity?
1.0 N
1.5 N
2.5 N
6 N
A toy truck powered by a battery is accelerating to the right. A string with negligible mass is attached to the truck. The diagram below shows the forces acting on the truck.
If a child pulls the string to the left, what force must the child exert to make the toy truck move to the right at a constant velocity?
1.0 N
1.5 N
2.5 N
6 N
Which of the following is an example of an object that could have a net force greater than zero acting on it?
a glass resting on a table
a ball rolling down a ramp
a ladder leaning against a wall
a toy car moving east at a constant velocity
A rope is attached to a block that has a weight of 120 N. When the rope exerts an upward force of 250 N on the block, what is the net force on the block?
130 N up
370 N up
130 N down
370 N down
The diagram below represents a block sliding across a table at a constant speed. All forces are shown except the frictional force.
0.8 N
1.6 N
1.7 N
2.5 N
A worker in a warehouse pushes two wooden boxes across a floor at a constant speed, as shown in the diagram below.
The arrow in the diagram represents the force box 1 exerts on box 2. In which direction does the reaction force point?
Right
Left
Up
Down
If you blow up a balloon, and then release it, the balloon will fly away. This is an illustration of...
Newton's first law
Newton's second law
Newton's third law
Galileo's law of inertia
Which of the follow examples are not explained by Newton's first law of motion acting on a single object respectfully?
If I'm riding a skateboard, it doesn't spontaneously reverse direction.
Dropping a box causes it to accelerate downwards.
A ball rolling straight down tilted plane hill won't ever veer left or right unless something pushes it.
A book lying on a desk doesn't start moving without an external force.
What net force is required to keep a 500 kg object moving with a constant velocity. of 10 m/s ?
500 N
50 N
10 N
0 N
