Science Tek

When a roller coaster is at the bottom of a hill it has

• high potential energy

• high kinetic energy

• low kinetic energy

• equal amounts of kinetic and potential energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

At which point is potential energy greatest?

• W
• X
• Y
• Z

Tags

NGSS.MS-PS3-2

When a pendulum swings, at which point is kinetic energy highest?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Jayla drops the same 10-kg ball from heights of 1 m, 2 m, and 3 m. Which graph correctly shows the kinetic energy of the ball that Jayla dropped from each height?

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Tags

NGSS.MS-PS3-1

The diagram shows a baseball being thrown into the air. Which graph best represents how the kinetic energy (KE) and potential energy (PE) of the baseball change through its flight?

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• 
• 

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

In the diagram below, a 5 kg object is moving with a speed of 10 m/s, and a 10 kg object is moving with a speed of 5 m/s. Which object in the diagram has more kinetic energy?

• Both of the objects have the same amount of kinetic energy.

• The 5 kg object has more kinetic energy.

• The 10 kg object has more kinetic energy.

• Neither object has any kinetic energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

When a person holds an object, it has potential energy. How will the potential energy change if the person lifts the object above his or her head?

• The object's potential energy will be the same.

• The object's potential energy will be greater.

• The object's potential energy will be less.

• The object's potential energy will be zero.

Tags

NGSS.MS-PS3-2

A demonstration helps students understand the principle of roller coaster design. Which answer choice correctly describes the ball’s kinetic and potential energy?

• The ball has more PE at position X than at position Z.

• The ball has more KE at position Y than at position W.

• The PE and KE of the ball are equal at position X

• The PE and KE of the ball are greatest at position Z.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

The bicycle rider is traveling up a hill. When the rider reaches the top of the hill, she stops to rest. Then she travels down the hill. The diagram shows the rider in the three different positions. Which of these correctly describes the potential energy and the kinetic energy of the bicycle rider?

• When the rider is at the top of the hill, her potential energy is the greatest, and her kinetic energy is the least.

• As the rider moves up the hill, her kinetic energy increases, and her potential energy decreases.

• When the rider goes down the hill, her potential energy increases, and her kinetic energy decreases.

• As the rider reaches the bottom of the hill, her kinetic energy and her potential energy decrease.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

The table lists the mass and speed of each of four objects. Which two objects have the same kinetic energy?

• A and D

• B and D

• A and C

• B and C

Tags

NGSS.MS-PS3-1