Which statement best describes kinetic energy?, D. Energy of sound, A. Energy stored in an object that is not moving, C. Energy made by light, B. Energy of motion, Which objects have kinetic energy? Select ALL that apply., C. A bird flying through the air, D. A book sitting on a desk, A. A soccer ball rolling across a field, B. A bicycle parked in a garage, Which group contains only objects with kinetic energy?, B. A parked car, a closed book, and a chair, A. A moving skateboard, a flying airplane, and a rolling bowling ball, C. A sleeping cat, a backpack, and a pencil, D. A bicycle leaning against a wall, a desk, and a lamp, Which example shows an object changing its motion?, B. A runner stopping at the finish line, C. A basketball resting on the floor, A. A car traveling at the same speed on a straight road, D. A bicycle parked outside, Which two tools would you need to calculate the speed of a student running across the playground?, B. Scale and thermometer, C. Ruler and balance, D. Stopwatch and thermometer, A. Meter stick and stopwatch, A toy car traveled 2 meters in the first 5 seconds, 6 meters after 10 seconds, 14 meters after 15 seconds, and 30 meters after 20 seconds. What does this tell you about the toy car?, B. It was moving backward., C. It was speeding up., D. It stopped moving., A. It was slowing down., A student walks from the school entrance to the playground. If the playground is east of the entrance, which direction did the student walk?, C. East, A. North, B. South, D. West, If the same amount of force is used to push each object, which object will move the farthest?, A. A refrigerator, B. A school bus, C. An empty shopping cart, D. A washing machine, Three students pull a wagon to the left while one student pulls with the same strength to the right. Which statements are true? Select ALL that apply., D. The forces are unbalanced., A. The wagon moves left., C. The forces are balanced., B. The wagon moves right., Two students pull a wagon to the left while two students pull with equal strength to the right. Which statements are true? Select ALL that apply., B. The wagon moves left., C. The wagon moves right., A. The wagon does not move., D. The forces are balanced., A student pushes an empty wagon and then pushes the same wagon after it is filled with books. Which statement is true?, D. Neither wagon needs force., B. The full wagon needs more force., C. Both wagons need the same amount of force., A. The empty wagon needs more force., A moving baseball hits a baseball glove. What is most likely to change because energy is transferred?, D. The glove's shape only, C. The glove's mass, A. The glove's speed or direction, B. The glove's color, A line of dominoes is standing upright. When the first domino falls, it knocks down the others. What does this show?, B. Energy is transferred from one object to another., C. Energy is created by each domino., A. Energy is destroyed., D. The dominoes lose all their mass., A marble rolls down a ramp and hits a ball that weighs 10 grams. The ball moves 4 centimeters. What will most likely happen if the marble hits a ball that weighs only 5 grams?, D. Both objects will stop immediately., B. The lighter ball will move less than 4 centimeters., C. The lighter ball will not move., A. The lighter ball will move farther than 4 centimeters., Engineers need to understand friction when designing which items? Select ALL that apply., D. Paint colors, C. Car brakes, A. Bicycle tires, B. Shoe soles, Which situations involve friction? Select ALL that apply., C. A backpack sitting still on the floor, D. A sled sliding across snow, A. Rubbing your hands together, B. Sliding a book across a desk, What is the independent variable in this investigation?, A. The type of surface, B. The distance the car traveled, C. The amount of force used, D. The toy car, Which surface caused the MOST friction?, D. Grass, A. Tile, C. Wood floor, B. Carpet, Which statement is best supported by the data?, B. Rough surfaces always make objects travel farther., A. The smoother the surface, the farther the toy car traveled., D. The amount of force changed during the investigation., C. The toy car traveled the same distance on every surface., A student's hypothesis says, "If the surface is smoother, then the toy car will travel farther because there is less friction." Based on the data above, the hypothesis was..., D. unrelated to the investigation., C. impossible to test., A. supported by the results., B. not supported by the results.

motion test practice

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