Big Idea 13 Review

Multiple Choice

Jill was rearranging her bedroom. She pushed her dresser across the floor to be closer to her closet. What caused the dresser to move across the floor?

• Gravity

• A force

• Inertia

• Friction

Multiple Choice

Holly balanced a spoon on top of her bowl of dumplings. Select the statement that is true.

• The spoon is balanced on the bowl because it is magnetic.

• The spoon will remain in place unless there is another force applied.

• Gravity will cause the spoon to fall off the bowl.

• The spoon will fall off the bowl if no other forces are acting on the spoon or bowl.

Multiple Choice

Two students are playing on a swing set. Student 1 is leaning back and extending her legs as she swings upward. Student 2 is sitting on the swing with his feet on the ground.

Which statement describes how position and motion are related in this picture?

• Both students are in motion even if only one student is changing position.

• Student 1 is in motion because she is changing her position as she swings up and back.

• Student 2 is in motion because the Earth’s gravity is keeping him from changing position.

• Both students are in motion because there are forces acting on both of them and at least one of the swings is changing its position.

Multiple Choice

Ronald and Sammy were playing tug-of-war in gym class. They noticed no matter how hard each person pulled the other, they were not able to move the other person. Which of the following forces were Ronald and Sammy experiencing?

• Gravity

• Friction

• Balanced Force

• Unbalanced

Multiple Choice

Miss. Bookout and Mrs. Danzl are driving in the car on the highway to go to the Science Center. They are traveling in their car at a speed of 45 miles per hour (m/h). They do not need to change speed on the highway because there is no traffic and the road is currently taking them in the direction that they need to go.

If there are no other forces applied to the car, which statement below is true about the Miss. Bookout and Mrs. Danzl’s motion?

• Their motion is balanced because it changes speed

• Their motion is unbalanced because it stops its motion.

• Their motion is balanced because it stays the same.

• Their motion is unbalanced because they are changing position.

Multiple Choice

Jana wanted to know how fast she was able to ride her bicycle. Which of the following below could Jana use to calculate the speed of her bicycle?

• Distance and time

• Friction and gravity

• Momentum and time

• Acceleration and velocity

Multiple Choice

Miss. Bookout and Mrs. Danzl are meeting up with Mrs. Lott at Fun Spot. They both leave Mollie Ray Elementary at the same time and drive the same route to get there. Miss. Bookout meets up with Mrs. Lott at Fun Spot first and Mrs. Danzl joins 20 minutes later.

Based on the scenario, which of the following statements is true?

• Miss. Bookout and Mrs. Danzl arrive to Fun Spot in the same amount of time because they both drove at the same speed.

• Mrs. Danzl takes less time than Miss. Bookout to arrive at Fun Spot because she is driving at a greater speed.

• Miss. Bookout takes more time than Mrs. Danzl to arrive at Fun Spot because she is driving at a greater speed.

• Miss. Bookout takes less time than Mrs. Danzl to arrive at Fun Spot because she is driving at a greater speed.

Multiple Choice

 Rosemary was learning how to drive and the importance friction plays in keeping safe. Which of the following surfaces has the least amount of friction?

• A dirt road

• A gravel driveway

• A road covered with ice

• A road covered with spilt sand

Multiple Choice

When an object is in motion, which of the following correctly identifies how friction acts on the object?

• By pulling on the object from above.

• At right angles to the motion of the object.

• The same direction as the motion of the object.

• The opposite direction of the motion of the object.

Multiple Choice

Joey is sledding with his pal, Susan. They start at the top of a mountain and push off to slide down the mountain.

Which statement best describes the motion of the sled as it slides down the mountain?

• Gravity causes the sled to be pulled down the mountain.

• The sled increases in speed down the mountain due to friction.

• The air resistance is in balance with the force of gravity that acts on the sled.

• Gravity’s force is less than friction that acts on the sled.

Multiple Choice

In science class, the teacher pushes a Blue 10 pound bowling ball with 25 newton’s of force and then pushes a Green 10 pound bowling ball with 20 newton’s of force. Which bowling ball will go farther?

• The Blue 10 pound bowling ball

• The Green 10 pound bowling ball

• Both bowling balls will go the same distance

• Neither ball will move because there was not enough force to move a bowling ball.

Multiple Choice

Liam pushes two marbles with equal amounts of force. Marble 1 has 5 grams of mass and Marble 2 has 10 grams of mass. Which of the following will happen?

• Both marbles will move at the same rate of motion.

• Both marbles will stay still and not have motion.

• Marble 1 will have more speed than Marble 2.

• Marble 2 will have more speed than Marble one.

Multiple Choice

Steven threw two rocks into the lake behind his house. He threw both rocks with 30 newtons of force. The first rock went 20 yards farther than the second rock. Which statement explains why the first rock went further?

• Rock one had less mass than rock two.

• Rock one had more mass than rock two.

• Rock one had a greater volume than rock two.

• Rock one had a smaller volume than rock two.

Multiple Choice

Loads of gravel are delivered each day by the train to the landscaping warehouse. The mass of the gravel each day are different. Look at the chart and decide which day would require the greatest amount of force required to move the train.

• Monday

• Tuesday

• Thursday

• Friday

Multiple Choice

Robert pushed his toy car across the floor of his living room. As the car rolled across the floor it suddenly turned right. Which of the following explains why the car suddenly turned to the right.

• A weaker force was applied to the car from the left that caused a balanced force

• A stronger force was applied to the car from the left that caused a balanced force.

• A weaker force was applied to the car from the left that caused an unbalanced force.

• A stronger force was applied to the car from the left that caused an unbalanced force.