Name: 

Force pairs act in __________ and are __________ in size.

Newton's first law of motion states that __________.

A ball is thrown straight up in the air. According to Newton's first law of motion, what is the reason for the ball falling back to Earth?

Which of the following is NOT an acceleration?

Which of the following statements is true?

Amyx is building a treehouse in his backyard. He notices that every time he strikes a nail with the hammer, the hammer bounces back just a little bit as the nail goes farther into the wood. This is because when the hammer strikes and exerts a force on a nail, the nail

According to Newton's 1st law of motion, which object below will not change speed or direction of motion without something acting on it?

Which of the following is true about friction?

Bjorn is going to take a 10-pound bowling ball and roll it across four different surfaces to test the force of friction. Across which surface will the ball travel the farthest?

Hannah just finished building a house of cards that stands four stories high. She is worried that it will fall down. Which of the following statements must be true?

John accidentally left his books on top of his mom’s car before they left for school. The books stayed on top of his car while they were driving north on Oak Avenue. Then, when they made a sharp turn eastward onto Harris Lane, his books fell off the top of his car and onto the street.

Tom is teaching Jenny how to ice skate. Both skaters, who are about the same size, are on the ice and wearing their skates. To help Jenny get started, Tom gives her a gentle push from behind. Which of the following best describes what will happen next?

When two objects rub together, the force that opposes the motion of the objectsis called

Newton’s __________ law of motin states that “An object at rest will remain at rest and an object in motion will remain in motion with the same speed and in the same direction unless acted upon by an unbalanced force.”

Newton’s _______ law of motin states that “Force is equal to the amount of mass of an object and the amount of acceleration the object has. 

Ashley made a paper airplane.  When she threw the airplane in the house, it always flew straight where she aimed.  Now she wants to throw the plane to her pet dog, Scruffy, who is in the backyard.  There is a steady wind blowing East. 

A diagram of Ashley’s backyard is shown above.  If she aims her throw directly at Scruffy, where is the paper airplane most likely to end up?

In a football game, a defensive lineman exerts a force upon an offensive lineman, causing the offensive lineman to be accelerated backward at 2 m/s2. If the offensive lineman's mass were doubled, how much force would the defensive lineman have to apply to accelerate the offensive lineman 2 m/s2 backward?

Two teams are playing tug-of-war. Each team is pulling on the rope with a force of 500 newtons. A ribbon is tied to the middle of the rope to determine the winner. Which of the following would result in the greatest acceleration of the ribbon?

Friction is a force that can oppose the motion of two objects that are in contact with one another. Which of the following are examples of friction?

I.      A space probe orbits the Moon.
II.      A parachute softens the landing of a skydiver.
III.      A nail holds two wooden boards together.
IV.      The brakes on a bike rub against the wheel.

The Earth exerts a pull on the Moon through its gravitational force. According to Newton's 3rd law of motion, the Moon must also be exerting a pull on the Earth. Which of these observations is evidence of the Moon's pull?

Newton's first law of motion states that an object will keep a constant velocity unless acted upon by an unbalanced force.

To test this statement, Martin rolled a ball on a long, level street. The ball did not bump into any object, but it eventually came to a stop. How is this possible?

If a car is traveling on the highway at a constant velocity, the force that pushes the car forward must be...

When starting to slide down a waterslide, why would a person push on the sides of the slide?

Friction allows us to
I. stop moving
II. change direction
III. start moving
IV. stand still

When a gallon of milk on Earth is compared to the same gallon of milk in space, the milk on Earth has the same mass but a different __________.

Mass is a measure of which of the following quantities?

The Earth has a large mass and would require a _______ force to _________ its motion.

Two bundles of science books are tossed off the school roof. There are two books in the first bundle and the other bundle contains 14 books. Both bundles are dropped from the roof at the same time.

Which of the following statements is true?

Which of the following can best help to determine if one object's inertia (mass) is greater than another's if a balance is not used?

Mary is driving on a straight road. Suddenly, a deer jumps out in front of her. Mary turns her car to the left to avoid the deer.

Which best describes what happens to Mary's head position if she is wearing her seatbelt?

The force that prevents a ball rolling on the ground from continuing on its path forever is __________.

An astronaut is standing on the deck of a spacecraft which is orbiting Earth. He throws a moon rock sample towards outer space (where there is no friction). How much force is needed to keep the rock moving?

Two identical plastic bottles are dropped at the same time from a high tower. One of the bottles is completely filled with water and the other is only half full of water.

Which of the following statements is true?

If all of the following vehicles are traveling at 30 miles per hour on a straight road, which vehicle would be the hardest to stop?

Newton's first law of motion states that an object not being subjected to a force will continue to move in a straight line at a constant speed. This is referred to as the law of ___________.

Newton's first law states that an object must travel at a constant speed and in ___________, unless some outside force compels it to change.

An object is not considered accelerating when

Forces that are equal in size but opposite in direction are ____.

If gravity did not affect the path of a horizontally thrown ball, the ball would ____.

Whenever a body is in motion, there is always ____ to oppose the motion.

The relationship among force, mass, and acceleration is stated in ____.

A feather falls through the air more slowly than a brick because of ____.

The statement "for every action, there is an equal but opposite reaction" is a statement of ____.

Motion is change in ____.

____ is rate of change of position.

When a car slows down at a traffic light, it is ____.

You hear that a storm is moving 15 km/h north. You have been given the storm's ____.

When two birds are pulling on a worm and the worm moves toward the first bird, you know that the forces are ____.

An unbalanced force acting on an object causes it to ____.

The force that opposes motion is ____.

Every force has a(n) ____ force.

You throw a ball into the air. As the ball leaves your hand, the force(s) acting on it is/are ____.