2020 Newton's Laws & Graphing Motion

Newton’s first law of motion is also called the law of ________?

• Mass
• Inertia
• Force
• Velocity

Slamming on the brakes in a moving car makes a passenger move forward against his or her seat belt because

• the passenger has the inertia to keep moving forward
• the passenger is being pushed by the seats of the car
• the passenger is better able to stop themselves in this manner
• the passenger has an equal and opposite force supporting their weight

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How long will an object remain at rest, according to Newton's First Law of Motion?

• it can't rest
• until noon
• until an unbalanced force occurs
• as long as there are unbalanced forces acting on it 

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Which of these is an example of Newton's First Law, inertia?

• pushing against a brick wall, and the brick wall does not move
• pushing against a stationary wheelbarrow, and the wheelbarrow accelerates forward
• pushing a wheelbarrow full of bricks, and the bricks slide back toward the handles
• pushing a wagon to the top of a hill, and the wagon to the top of hill and the wagon accelerates down the hill without assistance

Why is it harder to push a van filled with bowling balls than it is to push a van with basketballs?

• The mass of the car is greater than the mass of the basketballs
• The mass of the bowling balls is greater than the mass of the basketballs
• The van with the basketballs is bigger than the van with the bowling balls
• It should be equally as hard to push the two vans

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You pull a wagon with your younger sister in it. Which of these would accelerate the rate at which you can pull the wagon?

• pull the wagon with less force
• Pull the wagon with more force
• Have your sister push down on the wagon
• Put another of your siblings in the wagon

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When a person jumps horizontally off the end of a boat, the person goes forward and the boat goes backward. This is an example of 

• inertia
• action and reaction
• Newton's 1st law
• Newton's 2nd law

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A cup of coffee sits on the dashboard of an automobile. The car goes around a sharp curve. Even though you hold the cup still, coffee splashes out. This is explained due to 

• density
• friction
• gravity
• inertia 

When a Civil War era cannon is fired, the force of the gas produced by exploding powder propels the cannonball forward at a high speed. According to Newton's 3rd law

• the cannon itself moves backward
• the cannon itself does not move due to inertia
• the cannon itself moves forward as well with the momenturm
• the cannon itself moves forward with the inertia of the cannonball

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According to Newton's Third Law, what is the equal and opposite force to the downward force of gravity on a man standing on the beach?

• the man pulling upward on the earth
• the force of friction holding the man still
• the pull of the sun keeping the earth in orbit
• the surrounding air pressure keeping the man in equilibrium