Choose the words that correctly complete the sentence. The force of __________ pulls two objects together, but it decreases as the __________ between the objects increases.

Which of the following objects will change speed the slowest when the same force is applied?

What is determined by the distance an object travels and the time it takes to travel that distance?

Suppose a bulldozer is being hauled at 50 km/h to a construction site on the back of a flatbed truck. From which reference point would the bulldozer not appear to be moving?

Carmen is helping load furniture and boxes onto a moving truck. She picks up boxes of her things, places them on a cart, and pushes the cart to the moving van. Which term best describes the type of force Carmen uses?

Ahmed saw all of these things as he walked to school this morning. Which one is an example of a force pushing downward toward the ground?

Mr. Wang works in a recycling center. Recyclable materials arrive at the center mixed together. Workers use magnets to separate steel cans from other items. Which two statements are true about the force between a steel can and a magnet?

Keisha has two large dogs and a small dog. The dogs like to play tug-the-rope together. Each of these three diagrams shows one way that the dogs play together with the rope. Look at each arrow and the number that goes with it. They show the direction and amount of force each dog exerts on the rope. Look at the middle diagram, where the large dog and the small dog tug on the rope. Which statement correctly explains the amount and direction of the net force acting on the rope, and which direction the rope will move?

Vivian went on a bicycle trip through Germany with her family. One afternoon, she rode her bicycle along a long flat road at a constant speed for 24 kilometers (km). The ride took her 1.2 hours (h). At what speed did she ride her bicycle?

Choose the words that correctly complete the paragraph. Pace left home at 8 AM to spend the day at an amusement park. He arrived at the park, which was 150 km from his house, at 10 AM. Pace explained that his speed was 38 km/h, which was a/an __________ speed, but the fastest speed he went was 60 km/h, which was a/an __________ speed.

An antelope is being chased across the savannah by a hungry lion. The lion runs at a constant speed. How might the antelope use its velocity to escape the lion? Choose the three statements that apply.

Anna hits a golf ball, and it soars through the air toward the green. It travels in an arc across the ground. Which statement does not describe the ball’s acceleration before it stops?

Carlos likes to bowl. He timed how long it took for his ball to travel the length of an 18-m lane in the bowling alley. He plotted the final distance and time on a line graph. Carlos drew a line from this point to the origin of the graph. How far down the lane was the ball after it had traveled for 2 s?

Andrew plays trumpet in the concert band. He holds the trumpet still at his side until it is time for him to play. When it is time, he brings the trumpet up to his mouth and starts to play. Which statement correctly connects the motion of the trumpet with Newton’s first law of motion?

Jerome has a tow truck, and he is in charge of moving several vehicles for the city. He wants to explain to his niece how towing vehicles relates to Newton’s second law. Which statement should he use?

Arysha enjoys playing lacrosse on the school team. Suppose Arysha throws a lacrosse ball with force of 6 N, and the resulting acceleration is 43 m/s2. What is the mass of the lacrosse ball?

Miko is blowing up balloons for her little sister’s birthday party. One of the balloons slips out of her hand before she ties it off, and it shoots through the air until it is empty. Which statement explains what causes the balloon to accelerate?

Gina’s family played croquet, a lawn game in which balls are hit by mallets. Each player hits his or her ball around a path. The first person to hit the stake at the end of the path is the winner. All of Newton’s laws can be illustrated by a game of croquet. When the mallet hits the ball with an action force, the ball exerts a reaction force on the mallet, as explained by Newton's __________ law. The ball starts to move when the mallet applies a net force to it, as explained by Newton's __________ law. Once a ball is hit and no longer touches the mallet, it continues moving because of its inertia, as explained by Newton's _________ law.

The bumpy pattern on the soles of shoes is called the tread. Melanie and Keisha are at the store looking at the treads on different basketball shoes. They want new shoes so that they do not slide on the basketball court. Which of these situations produces the most friction between the shoes and the floor?

An astronaut in space might feel weightless, but there still is a gravitational attraction between the astronaut and Earth. Which two factors affect this gravitational attraction?

David delivers meals to elderly people once a week. He uses a cart to move the meals. The cart has four smooth wheels. Which type of friction acts between the cart wheels and the sidewalk?

Daphne is a pilot for a package delivery service. As her plane takes off and travels away from the Earth’s surface, its gravitational potential energy increases. Which three factors affect the plane’s gravitational potential energy?

Miguel learned about the difference between mass and weight. He wanted to investigate what he would weigh at different locations in our solar system. He used this table to organize data he found out about Earth, the moon, Neptune, and Mercury. He needs to fill out the rest of the table. How would Miguel's mass on Neptune compare to his mass on Earth?

Daylon’s family just bought a new puppy, and Daylon decided to take him for a walk. He put the puppy in a wagon and pulled the wagon along the sidewalk. From which of these reference points does the puppy appear to be moving?

Two school classes are playing tug-of-war with a rope. One class pulls on the rope with a 75 N force to the left, the other pulls with a 40 N force to the right. Which two statements describe this situation?

You might have noticed that a feather falls slowly toward the ground, while a ball falls rapidly. Which statement correctly explains the motion of these objects?

Nicki rides her bike at a constant speed for 6 km. That part of her ride takes her 1 h. She then rides her bike at a constant speed for another 9 km. That part of her trip takes her 2 h. What is her average speed?

Choose the words that correctly complete the paragraph. Susan ran the 400-m sprint at the track meet, and her final time was 65 s. She reported that her velocity in the race was 6.15 m/s. Susan’s statement was an inaccurate report of velocity because she mentioned only __________. She did not include __________ , which is also a part of velocity.

Georgia loves to drop water balloons from her third-floor balcony into a dumpster located on the street below. Her brother filmed one balloon falling. He measured the height of the balcony rail. Then he used the video camera’s time feature to figure out how far the balloon had traveled from Georgia’s hand after each quarter of a second. He listed the times and distances in a table. Which of the following accurately graphs the distance the water balloon traveled over 1.5 seconds using the data Georgia’s brother collected.

Georgia loves to drop water balloons from her third-floor balcony into a dumpster located on the street below. Her brother filmed one balloon falling. He measured the height of the balcony rail. Then he used the video camera’s time feature to figure out how far the balloon had traveled from Georgia’s hand after each quarter of a second. He listed the times and distances in a table. Based on the graph, which of the following statements provides accurate math-based evidence to support how the balloon travelled?

Connor received a new puppy as a birthday gift. The puppy’s food bowl was placed on a mat to keep spilled food off the floor, but every morning the food bowl is sitting across the room. Which statement accounts for this situation?

Nikhil bought a large plant in a planter for his mother. He took it home and pushed it around his living room until he found a good location for it near the window. After he watered the plant, he was very surprised how difficult it was to push the planter. Based on Newton’s second law, why does it become more difficult to move the planter? Choose the three statements that apply.

Choose the phrases that correctly complete the paragraph. Teresa did a trick in which she placed dishes on a tablecloth placed on a card table. She pulled quickly on the tablecloth, and it came off the table, leaving the dishes behind on the table. The inertia of the dishes kept them on the table according to Newton's __________ law. The tablecloth moved when she applied force to it, as explained by Newton's __________ law. When she pulled on the tablecloth with an action force, the tablecloth exerted a reaction force on her, as explained by Newton's __________ law.

Pam’s family is clearing some land, and there is a large boulder sitting on top of the ground. Even with the entire family pushing on it, they cannot move it. Which type of friction exists between the boulder and the ground?

Do you believe that you are pulled towards your science book, a bunch of grapes in your lunch, and your school building because of universal gravitation? Which two statements about universal gravitation are true?

Choose the words that correctly complete the paragraph. (Assume the measurements are taken on Earth.) Pablo measured his horse at 1000 lbs, which is a measure of the horse’s __________. He also knows that the horse is 454 kg, which is a measure of the horse’s __________. Another measure of the horse is 4450 N, which is another way to state the horse’s __________.

Two children fight over a toy. One pulls with a force of 8N to the right. The other pulls with a force of 6N to the left. What is the strength and direction of the net force on the toy?

What changes in motion show that an object is accelerating? (Select ALL that apply:)

What is the average speed of a train that covers 80 km in 1 h, 200 km in 2h, and 420 km in 4 h?

A ball is pushed from a stop and rolls 6 m in 2 s. Student A says the average speed of the ball is 3 m/s. Student B says the average speed of the ball is 1.5 m/s2. Which student and explanation is correct?

What is the difference between balanced forces and action-reaction forces?

A girl pushes on the classroom door to open it. Which two terms accurately describe the net force acting on the door?

A dog is pulling on a leash while walking down the sidewalk. What frame of reference would indicate that that dog is not moving?

Two dogs pull on a rope. One dog pulls with a force of 5N to the left, and the other dog pulls with a force of 3N to the right. What is the result?

A bus driver drove from Philadelphia to Washington D.C. He drove the first 100 km in 2 hours, the next 55 km in 1 hr, and the final 75 km in 2 hours. What is the average speed of the bus throughout the trip?

Which statement about acceleration is always true?

A cross-country runner runs 4 km in 15 minutes. What can you calculate using this information?

A woman is taking a walk, moving at a rate of 80 m/min. What additional information would you need to determine her velocity?

A soccer player kicks a ball. Which of the following describes the reaction force to this kick?

Which term describes the resistance to change in motion?

The acceleration of a baseball after it is hit by a bat depends on the mass of the ball and the net force on the ball. This example best illustrates what law?

When is there static friction between your desk chair and the floor?

What is the relationship between kinetic energy of an object and the mass of an object? Assume the speed is constant.

After an initial push, a sled begins to move downhill at 1 m/s. A few seconds later its kinetic energy has increased. The sled now has 64 times more kinetic energy than it did right after the push. How fast is it going?