Newton Third Law of Motion

Multiple Choice

What is Newton's First Law of Motion?

• An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an unbalanced force.

• An object will accelerate in the direction of the net force acting on it.

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

• An object in motion will eventually come to a stop without any external force.

Multiple Choice

What is the difference between balanced and unbalanced forces?

• Balanced forces change an object's motion, while unbalanced forces do not.

• Balanced forces do not change an object's motion, while unbalanced forces do.

• Balanced forces are stronger than unbalanced forces.

• Unbalanced forces always act in pairs, while balanced forces do not.

Multiple Choice

How does mass relate to inertia?

• Objects with greater mass have greater inertia.

• Inertia is independent of mass.

• Objects with less mass have greater inertia.

• Inertia increases with speed, not mass.

Multiple Select

A force is a _______ or a ______

• push

• pull

• acceleration

• velocity

Multiple Select

Newton's Second Law of Motion shows a relationship between _______

• force

• mass

• acceleration

• convection

Multiple Select

Which examples illustrates Newton's First Law of motion

• a book resting on a table

• a car going around a curve resists to continue moving in a straight line

• A person wears a seatbelt to prevent getting injured

• A larger force is need to accelerate an object with more mass

Multiple Choice

Newton's Third Law of Motion states that the force applied by one object on the other results in the second object applying the same amount of force in exactly the

• Opposite direction

• Same Direction

• All of the Above

• None of the Above

Multiple Choice

Newton's Third Law is also known as

• The law of Inertia

• The law of Force and Acceleration

• The law of Action-Reaction

• The law of Speed

Multiple Choice

When the delivery driver drops the box, the box exerts a _______on the ground.

The ground exerts an ________ force on the box

• force; equal and opposite

• force; unequal and opposite

• force; balanced and opposite

• force; unbalanced

Multiple Choice

Which design solution would BEST solve this problem by decreasing the a acceleration of the falling box? Go to next slide

• A pad on the ground

• a robot to gently lift and drop the boxes off the end of the truck

• A plan to arrange the boxes so they do not collide with the ground

• A wooden ramp to slide the boxes down

Multiple Choice

Newton's Third Law is also known as

• The law of Inertia

• The law of Force and Acceleration

• The law of Action-Reaction

• The law of Speed

Multiple Choice

According to Newton's Third Law, if someone jumps off a skateboard, the skateboard will roll backwards 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

Multiple Choice

A player hits a ball with a bat. The action force is the impact of the bat against the ball. The reaction force is...

• The grip of the player's hands on the ball
• the air resistance of the ball
• the force of the ball against the bat

Multiple Choice

if the action force was 70 N to the right , the reaction force must be ___________________

• 70 N to the right

• 80 N to the left

• 70 N to the left

• 70 N up

Multiple Choice

Which type of force(s) will cause a change in an object's motion?

• gravity
• zero net force
• balanced forces
• unbalanced forces

Multiple Choice

If an object has a small mass, it wouldn't need as strong of a force to accelerate it. Which law does this describe?

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• Newton's 4th Law