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A student makes a model to show the transformation between kinetic and potential energy at the edge of a glass bowl at point A, and the marble travels through points B and C as shown in the picture. Which statement correctly compares the kinetic and potential energy of the marble at the different positions?

• The marble's kinetic energy and potential energy are highest at point A.

• The marble’s potential energy decreases, and its kinetic energy increases as it moves from point A to point B.

• The marble’s kinetic and potential energy are higher at point B than point C.

• The marble’s potential energy decreases, and its kinetic energy increases as it moves from point B to point C.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Which section of the diagram represents mechanical energy being converted to electrical energy?

• part A

• part B

• part C

• part D

Use the diagram to answer the question.

• solar to electrical to mechanical

• solar to chemical to electrical

• heat to mechanical to electrical

• heat to electrical to chemical

How will a student use this device in a science experiment?

• They can use the electricity it generates to power a light bulb.

• They can use the temporary magnetic field it creates to pick up metal paper clips.

• They can use the device as a switch in an electrical circuit.

• They can use its chemical energy to create electricity that spins the coiled wire

Use the diagram to answer the question

• Convection is the transfer of heat that always happens in an upward direction.

• Conduction is the transfer of heat from a hotter object to a colder object.

• Conduction is the transfer of heat from a larger object to a smaller object.

• Convection is the transfer of heat between objects that are in contact.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A child pushing a cart across the floor , and the cart moves at a certain speed. When he pushed the cart with a greater force , the cart begins to move faster. Which type of energy increases when the child applies a greater force?

• chemical energy

• electrical energy

• kinetic energy

• potential energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A student takes a rubber band and slowly stretches it between his two fingers. What form of energy does the stretched rubber band contain?

• elastic kinetic energy

• elastic potential energy

• gravitational kinetic energy

• gravitational potential energy

Choose the correct answer...

• electric iron

• electric motor

• electric bell and electric iron

• electric bell and electric motor

What is the primary function of the slow loris's venom?

• A) To paralyze prey

• B) To deter predators

• C) To aid in digestion

• D) To attract mates

Which of the following processes is slowest in the water cycle?

• A) Evaporation

• B) Condensation

• C) Precipitation

• D) Infiltration

Tags

NGSS.MS-ESS2-4