The Potential for Speed

What happens to potential energy when a snowboarder descends a slope?

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NGSS.MS-PS2-4

NGSS.MS-PS3-2

Chapter 2
What force helps snowboarders gain kinetic energy?

• • Friction

• • Gravity

• • Magnetic force

• • Air resistance

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According to the passage 'The Potential for Speed', which type of energy is described as stored energy?

• Kinetic energy

• Potential energy

• Motion energy

• Force energy

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NGSS.MS-PS3-2

What are the two kinds of energy mentioned in the passage 'The Potential for Speed'?

• Kinetic and Potential Energy

• Thermal and Chemical Energy

• Nuclear and Electrical Energy

• Mechanical and Sound Energy

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72 m/s

• Speed

• Velocity

• Acceleration

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Which of the following is a unit of speed ?

• sec

• mi

• m/s

• min

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NGSS.MS-PS3-1

A runner completes a 400m lap in 50 seconds. What was the runner's average speed?

• 8 m/s

• 450 m/s

• 8 km/h

• 450 km/h

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NGSS.MS-PS3-1

If a cyclist travels a distance of 90 km in 3 hours, what is their speed?

• 30 km/h

• 27 km/h

• 60 km/h

• 90 km/h

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NGSS.MS-PS3-1

In the passage 'The Potential for Speed', the conversion of energy usually means what for extreme athletes?

• Increased endurance

• Enhanced speed

• Improved focus

• Greater strength

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

What happens to potential energy when a car accelerates on a flat road?

• It increases

• It remains unchanged

• It converts to kinetic energy

• It disappears

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