Unit 7 Day 6 - Newton's Laws

Multiple Choice

 If a person has a mass of 50Kg on Earth, would it be the same or different on the moon?

• The mass would be less on the Moon.
• The mass would be greater on the Moon.
• The mass would change depending on the phase of the Moon.
• The mass would be the same on the Moon.

Multiple Choice

If a person weighs 490 N on Earth, would it be the same or different on the moon?

• Same
• Heavier
• Lighter
• Different

Multiple Choice

Inertia is the tendency of an object to

• change direction spontaneously
• accelerate indefinitely without any force
• stop moving without any external influence
• remain at rest or in uniform motion unless acted upon by an external force.

Multiple Choice

The greater an object's mass, the greater its

• inertia

• gravitational force

• acceleration

• speed

Multiple Choice

Newton's 2nd Law of Motion is also called the Law of ________

• action / reaction

• Acceleration
• Inertia
• Gravity

Multiple Select

A grocery store customer was pushing a shopping cart full of purchased groceries to her car. If she wanted to increase the acceleration of the shopping cart, what could she do to make it happen? (Choose All That Apply)

• Pull the cart instead of pushing it.
• Push the cart with more force.
• Remove some groceries from the cart.
• Reduce the friction in the wheels.

Multiple Choice

Newton's 2nd Law of motion can be mathematically expressed by which formula?

• F = mv
• F = p/t
• F = m^2a
• F = ma

Multiple Choice

Newton's third law of motion is also known as the law of

• inertia and momentum
• gravity and levity
• force and motion
• action and reaction

Multiple Choice

Which of Newton's Laws of Motion apply? As the fuel in a rocket ignites, the force of the gas expansion and explosion pushes out the back of the rocket and pushes the rocket forward.

• Newton's Second Law of Motion
• Newton's First Law of Motion
• Newton's Third Law of Motion

Multiple Choice

Which of Newton's Laws applies? A frog leapig upward off his lily pad is pulled downward by gravity and lands on another lilly pad instead of continuing on in a straight line.

• Newton's First Law of Motion
• Newton's Second Law of Motion
• Law of Universal Gravitation
• Newton's Third Law of Motion

Multiple Choice

Which of Newton's Laws of Motion apply? When you are standing up in a subway train, and the train suddenly stops, your body continues to go forward.

• Newton's Third Law of Motion
• Newton's Second Law of Motion
• Newton's First Law of Motion

Multiple Choice

Which of Newton's Laws of Motion apply? After you start up your motorbike, as you give it more gas, it goes faster.

• Newton's Third Law of Motion applies.
• Newton's First Law of Motion applies.
• Newton's Second Law of Motion applies.

Multiple Choice

Which of Newton's Laws of Motion apply? A pitched baseball goes faster than one that is gently thrown.

• Newton's Second Law of Motion
• Newton's Third Law of Motion
• Newton's First Law of Motion

Multiple Choice

Which of Newton's Laws of Motion apply? A swimmer pushes water back with her arms, but her body moves forward.

• Newton's First Law of Motion
• Newton's Second Law of Motion
• Newton's Third Law of Motion

Multiple Choice

Which of Newton's Laws of Motion apply? An ice skater pushes harder with his leg muscles, he begins to move faster.

• Newton's First Law of Motion
• Newton's Second Law of Motion

• Newton's Third Law of Motion

Multiple Choice

Which of Newton's Laws of Motion apply? When Bobby, age 5, and his dad are skipping pebbles on the pond, the pebbles that Bobby's dad throws go farther and faster than his.

• Newton's Third Law of Motion applies.
• Only Newton's First Law of Motion applies.
• Newton's First and Second Laws of Motion apply.
• Newton's Second Law of Motion

Multiple Choice

Which of Newton's Laws of Motion apply? When you paddle a canoe, the canoe goes forward.

• Newton's First Law of Motion
• Newton's Second Law of Motion
• Newton's Third Law of Motion

Multiple Choice

Which of Newton's Laws of Motion apply? A little girl who has been pulling a sled behind her in the snow is crying because when she stopped to tie her hat on, the sled kept moving and hit her in the back of her legs.

• Newton's Second Law of Motion applies.
• Newton's Third Law of Motion applies.
• Gravity is the only force acting on the sled.
• Newton's First Law of Motion applies.