MS PS3 5

A pitching machine is used to pitch two balls. The speed of both balls is 94 km/hr. The mass of one ball is 5 grams, and the mass of the other ball is 50 grams. Since both balls are traveling at the same speed, which of the following is true?

• The 5-gram ball has more kinetic energy than the 50-gram ball.

• Neither ball has any kinetic energy.

• The 50-gram ball has more kinetic energy than the 5-gram ball.

• The balls have the same kinetic energy.

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Two cars that are identical except for their color are traveling on the same road. The red car is traveling at a speed of 78 km/hr, and the blue car is traveling at a speed of 106 km/hr. Which of the following statements is true?

• The red car has more kinetic energy than the blue car.

• Neither car has any kinetic energy.

• The cars have the same kinetic energy.

• The blue car has more kinetic energy than the red car.

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NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A scientist is studying asteroid impacts in space. For his current study, he chose four asteroids, which are on the course of collision with other asteroids. The table given summarizes the characteristics of the four asteroids. Based on it, which asteroid has the greatest kinetic energy?

• asteroid Z

• asteroid X

• asteroid W

• asteroid Y

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

A 15,000-kilogram truck and a 3,000-kilogram van are moving alongside one another on a road. The vehicles are moving at the same speed, and the speed of both vehicles is constant. Which of the following statements is true about the vehicles?

• The van has more kinetic energy than the truck.

• The truck has more kinetic energy than the van.

• Neither vehicle has any kinetic energy.

• The vehicles have the same kinetic energy.

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Sam and Dean are at a bowling alley. Sam throws a bowling ball toward a set of bowling pins, and his ball moves at 25 km/hr. Dean throws an identical ball toward another set of bowling pins, and his ball moves at 22 km/hr. Since both bowling balls have the same mass, which of the following statements is true?

• The bowling balls have the same kinetic energy.

• Neither ball has any kinetic energy.

• Dean's ball has more kinetic energy than Sam's ball.

• Sam's ball has more kinetic energy than Dean's ball.

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NGSS.MS-PS3-1

Kinetic energy is the energy of motion. How could a person determine how much kinetic energy an object has?

• by finding its position and form

• by finding its height and width

• by finding its mass and speed

• by finding its speed and direction

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NGSS.MS-PS3-1

Steve, Mary, Annie, and James hit four identical tennis balls with a racket. The diagram shows the top speed at which each tennis ball moved when it was hit. Based on the diagram, which of the following is true about the tennis balls when they were at their top speed?

• Annie's ball had the most kinetic energy.

• Mary's ball had the most kinetic energy.

• James's ball had the most kinetic energy.

• Steve's ball had the most kinetic energy.

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Niagara Falls is a set of very large waterfalls located on the border between New York and Ontario, Canada. Over 200,000 cubic feet of fast-moving water falls approximately 180 feet every second. Water at the top of the Falls possesses

• only kinetic energy.

• kinetic energy and gravitational potential energy.

• only gravitational potential energy.

• neither gravitational potential energy nor kinetic energy.

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NGSS.MS-PS3-2

Andrea and the other members of the tennis team are practicing hitting tennis balls. If two people hit identical balls at the same time, which ball has the most kinetic energy?

• the ball that stops moving first

• the ball that travels the farthest distance from the ground

• the ball that lands the shortest distance away

• the ball that moves at the fastest speed

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

The following graph shows the kinetic energy of a roller coaster car as it passes through a loop. What was the most likely cause for the rise in kinetic energy after 2.5 seconds?

• The roller coaster began slowing down.

• The roller coaster was pulled with decreasing gravitational force.

• The roller coaster started gaining elevation.

• The roller coaster began speeding up.

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NGSS.MS-PS3-1

NGSS.MS-PS3-5