Newton's Three Laws of Motion Class Lesson

Isaac Newton's Three Laws of Motion

INERTIA

Multiple Choice

According to the video, what is the first rule of physics regarding objects at rest?

•    They will eventually move on their own.

• They want to stay where they are unless acted upon by a force.

• They have no effect on their surroundings.

Multiple Choice

What does the term "laziness" refer to in the context of the video?

• The tendency of objects to stop moving.

•   The effort required to change an object's state of motion.

•    The unwillingness of objects to move.

Multiple Choice

What happens to a pebble when it is kicked in outer space, according to the video?

•    It will stop moving immediately.

• It will keep moving forever unless acted upon by another force.

    

• It will start moving and then slow down.

Multiple Choice

Why do objects tend to resist changes in their state of motion?

•   Because they are heavy.

• Because they are made of solid materials.

•    Because they have inertia.

Multiple Choice

What is the Latin term for "laziness" that physicists use, as mentioned in the video?

• Inertia

• Motus

• Ta Ina

Multiple Choice

What is the first rule of physics is suggested in the video?

•    Objects at rest will eventually move.

• Objects want to keep doing what they are already doing.

• Objects in motion will always stop eventually.

Newton's First Law of Motion
(Law of Inertia)

Multiple Choice

What does Newton's First Law of Motion primarily state?

•    An object in motion will stay in motion unless acted upon by a balanced force.

•    An object at rest will remain at rest unless acted upon by an unbalanced force.

   

•  An object in motion will eventually come to a stop.

Multiple Choice

Which term is often used interchangeably with Newton's First Law of Motion?

•    Law of Action

•    Law of Energy

•    Law of Inertia

Multiple Choice

What is an example of an object in motion?

•    A book on a desk.

•    A ball being thrown in a game of catch.

•    -A car parked in a garage.

Multiple Choice

Which of the following factors increases an object's inertia?

•    Decreasing its mass.

•    Changing its shape.

•   Increasing its mass.

Multiple Choice

What is the main difference between an object at rest and an object in motion according to Newton's First Law?

• An object at rest will eventually move, while an object in motion will stop.

•     An object at rest requires an unbalanced force to move, while an object in motion requires a balanced force to stop.

•     Both require a unbalanced force to change their state.

Multiple Choice

In the context of Newton's First Law, what is an "unbalanced force"?

•     A force that does not change the motion of an object.

•     A force that causes a change in the motion of an object.

•     A force that is equal to another force.

Newton's Second Law of Motion

Force, Mass and Acceleraton

Multiple Choice

What does Newton's second law of motion describe?

•   The relationship between mass and weight.

•    The relationship between force, mass, and acceleration.

•    The effects of gravity on falling objects.

Multiple Choice

In the equation F = m × a, what does the "F" represent?

• Friction

•  Force

•    Frequency

Multiple Choice

If an object has a larger mass, what can be inferred about the force needed to accelerate it?

•    Less force is needed

•    The same amount of force is needed

•    More force is needed

Multiple Choice

Which of the following scenarios best illustrates the concept of acceleration?

•    A car moving at a constant speed

•    A ball rolling down a hill

• A person pushing a stationary car to make it move

Multiple Choice

If two objects are pushed with the same force, but one object has a greater mass, what will happen to the acceleration of each object?

•    Both will accelerate equally

•    The object with greater mass will accelerate moreT

•   The object with greater mass will accelerate less

Multiple Choice

A 20 kg bike accelerates at 10 m/s2. What was the force?

• 25 Newtons

• 20 Newtons

• 200 Newtons

Multiple Choice

A 50-kg crate is pushed with a horizontal acceleration of 20 m/s². What net force is acting on the crate?

• 2.5 N

• 0.4 N

• 1000 N

Multiple Choice

The mass of a wagon is 40 kg. The wagon accelerates at 8 m/s² . What is the force?

• 38.25 Kg

• 320N

• 5N

• 3.825Kg

Multiple Choice

A cat has a mass of 200 kg and accelerates at 3 m/s² to catch a mouse. How much force would be needed to stop the cat?

• 300 N

• 500 N

• 600 N

Newton's Third Law of Motion
Action-Reaction Pairs

Multiple Choice

What does Newton's third law of motion state?

•   An object at rest stays at rest.  

• For every action, there is an equal and opposite reaction.  

• The force of gravity acts on all objects. 

Multiple Choice

In the context of Newton's third law, what happens when a rocket fires its engines?

• The rocket moves upward while the exhaust moves downward.  

• Both the rocket and exhaust move upward.  

• The rocket stays still.

Multiple Choice

If a boxer punches a punching bag with a force of 50 pounds, what force does the punching bag exert back on the boxer?  

• 100 pounds

• 25 pounds

• 50 pounds

Multiple Choice

Which of the following scenarios best illustrates Newton's third law of motion in everyday life? 

•  

  A person sitting on a chair.  

• A swimmer pushing off the wall of a pool.  

• A book falling off a table. 

Summary

Multiple Choice

A force of 90N is applied to each cart below, which one will accelerate the fastest?

• Cart 1
• Cart 2
• Cart 3 
• Cart 4

Multiple Choice

Which of the following best describes Newton's 1st law?

• Objects keep doing what they are doing unless a force is applied
• Objects react to outside forces
• Unbalanced forces on an object keep it at rest

Match

Match Newton's Laws with their definitions.

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

Law of Inertia

F = m x a

Action/Reaction

• Law of Inertia

• F = m x a

• Action/Reaction

Dropdown

If a golf ball is accelerated at the same rate as a bowling ball, the ​

Select answer

ball would be harder to stop due to it's larger ​

Select answer

.​

Multiple Choice

True or False.  An increase in mass will result in an increase in the acceleration?

• True
• False

Multiple Choice

The larger the mass you have the _____ force you need to change its motion.

• more
• less

Multiple Choice

What is the equation for Newton's 2nd law?

• a = bc
• F = m/a
• F = ma

Multiple Choice

Objects tendency to resist change

• Friction
• Inertia
• Force