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Unit 5 Practice Test 1/8 Question: 1 Angel needs to report the magnitude of acceleration of the train she is driving to her crew. The train started from rest at the station and accelerated uniformly for 200 seconds until it reached its maximum speed of 124 kilometers per hour. What should she tell the crew? Directions: Read the passage below and answer the question(s) that follow Passage Directions: The graph below represents the speed with respect to time t of four cars traveling on a straight road. Use the graph to answer any questions that follow. Question: 2 Which car moves the GREATEST distance in the time interval from t = 10 seconds to t = 16 seconds?

Unit 5 Practice Test 2/8 Question: 3 The graph shows changes in velocity over time for a car traveling on the highway. During which intervals is acceleration positive and constant? Question: 4 Which term refers to the tendency of an object to maintain its state of motion? Question: 5 What is the force, to the nearest tenth of a N, required to accelerate a 4.0-kilogram mass at 10.0 m/s 2 ?

Unit 5 Practice Test 3/8 Question: 6 A Jordan is investigating the braking mechanism of a new car model. The 1950 kilogram car travels along a track at 22.0 meters per second. Force is then used to bring the car to a complete stop. This is shown in the data below, along with the amount of time it would take the car to stop. How does the data support the equation given in Newton's second law of motion, F = ma ? A. The rate of acceleration will increase as the time required to stop increases. B. The rate of acceleration will always be constant for a car with constant mass. C. Applying twice as much force to the car will cause it to decelerate at half the rate. D. Applying twice as much force to the car will cause it to decelerate at twice the rate. Question: 7 Merma drops different objects from the same height on Earth. The table shows her data. Object Mass (kg) Gravitational Force on the Object (N) 1 5 49 2 50 490 3 500 4900 4 5000 49000 Based on Merma's data, what is the relationship between an object's mass and the gravitational force that acts upon it? A. Objects with more mass have less gravitational force acting upon them. B. Objects with more mass have more gravitational force acting upon them. C. The gravitational force on an object is one tenth of the mass of an object. D. The gravitational force on an object is ten times greater than the mass of an object.

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Unit 5 Practice Test 4/8 Question: 8 Three spheres are dropped from a height of 10.0 meters in a vacuum. The data from the results is shown below. Which of the following relationships is true? A. For each additional kilogram of mass, the force of the sphere doubles. B. The force of the spheres decrease as the mass of the spheres increase. C. The acceleration of the spheres is constant, even when the mass and force change. D. The mass and force of the spheres will remain constant if their acceleration is constant. Question: 9 A soccer ball and a car are dropped from the same height in a vacuum on Earth. Choose the two statements that are correct. Question: 10 The diagram below shows a balanced lever with boxes on either end. What equation would reflect that the lever is balanced?

Unit 5 Practice Test 5/8 Question: 11 The inclined plane shown below is being used to lift a box 12.0 feet. The inclined plane has a mechanical advantage of 3. What is the length, x, of the inclined plane? Question: 12 Marla and Jaxon are hiking outside. Jaxon runs in a straight line up a hill, but Marla walks in circles around the hill until she makes it to the top. The picture shows the paths Jaxon and Marla take. Marla told Jaxon she used a simple machine, an inclined plane, to walk up the hill. Which statement best compares Marla's and Jaxon's methods of climbing the hill? A. Jaxon did more work than Marla because he ran quickly up the hill. B. Marla did more work than Jaxon because she walked a longer distance. C. Marla and Jaxon did the same amount of work, but Marla had less of a mechanical advantage. D. Marla and Jaxon did the same amount of work, but Marla had more of a mechanical advantage. 12 feet

Unit 5 Practice Test 6/8 Passage Directions: The table below shows the distances and times it took Mary, Jake, Tina, and Jose to race across their school campus to their science class. Each student took a different path, causing their distances traveled to vary. Use the information in the table to answer any questions that follow Question: 13 Order the racers from fastest to slowest average speed. Question: 14 What was Mary's average speed in meters per second to the nearest tenth? Question: 15 The table shows the acceleration due to gravity on four different planets. What planet is a person standing on if the person has a mass of 125.0 kg and weighs 471 N?

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Unit 5 Practice Test 7/8 Question: 16 Which scenario best demonstrates an example of Newton's first law of motion? Question: 17 During a football game, Skylar accidentally knocks similar gym bags, one empty and one full of shoes and clothes, off the back of the bleachers. If there is no wind resistance, which bag will hit the ground first? Question: 18 Which statement is true about the relationship between mass and weight? A. Mass and weight are the same thing and can be used interchangeably. B. Mass increases with increasing gravity, while weight does not change with gravity. C. Mass does not change in an object, but the weight of the object is affected by gravity. D. Mass is dependent on volume, while weight is dependent on the number of atoms in an object. The empty bag will hit the ground first

Unit 5 Practice Test 8/8 Question: 19 Anthony used 120 newtons of force to push a box 2 meters down the driveway. Using the formula, how much work, measured in joules (J), did they do to move the box? Work = force × distance Question: 20 The picture shows a wheel and axle. What is the mechanical advantage if the radius of the wheel is 20 cm and the radius of the axle is 5 cm?

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