Energy Unit - Choice Board

An action that causes an object to accelerate or change direction

• Force

• Friction

• Torque

• Gravitational

• Potential Energy

Answer explanation

A force is any interaction that causes an object to accelerate or change its direction. It is the fundamental cause of motion changes, making 'Force' the correct answer.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Energy that is stored within an object

• Potential Energy

• Kinetic Energy

• Mechanical Energy

• Sound Energy

Answer explanation

Potential energy is the energy stored within an object due to its position or state. It contrasts with kinetic energy, which is the energy of motion. Therefore, the correct answer is Potential Energy.

Tags

NGSS.MS-PS3-2

Energy that a body possesses as a result of its motion is

• Kinetic Energy

• Mechanical Energy

• Potential Energy

• Gravitational Energy

• Sound Energy

Answer explanation

Kinetic Energy is the energy a body has due to its motion. It is directly related to the speed and mass of the object, making it the correct choice for energy resulting from motion.

Tags

NGSS.MS-PS3-1

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The combination of potential (stored) energy and kinetic (motion) energy

• Kinetic Energy

• Potential Energy

• Mechanical Energy

• Gravitational Energy

• Power

Answer explanation

Mechanical Energy is the sum of potential (stored) energy and kinetic (motion) energy. It represents the total energy in a system that can do work, making it the correct choice for this question.

The force that opposes the motion of two surfaces in contact

• Torque

• Friction

• Power

• Energy

Answer explanation

Friction is the force that opposes the motion of two surfaces in contact. It acts in the opposite direction to the movement, making it the correct answer to the question.

As mass increases, the kinetic energy will ________

• Decrease

• Increase

• Divide by 2

• Stay the same

Answer explanation

As mass increases, kinetic energy, which is calculated as 1/2 mv², will increase because kinetic energy is directly proportional to mass. Therefore, the correct answer is that kinetic energy will increase.

Tags

NGSS.MS-PS3-1

Energy cannot be created or destroyed. Energy can be converted to other forms. True or False?

• TRUE

• FALSE

Answer explanation

The statement is TRUE because of the law of conservation of energy, which states that energy cannot be created or destroyed, only transformed from one form to another.

Tags

NGSS.MS-PS3-5

Stored energy in the chemical bonds of substances, like food is an example of__________ energy.

• Thermal

• Nuclear

• Gravitational

• Chemical

Answer explanation

Stored energy in chemical bonds, like those in food, is known as chemical energy. This type of energy is released during chemical reactions, making 'Chemical' the correct choice.

A skateboarder waiting at the top of a ramp has _______________ energy.

• Nuclear

• Potential

• Kinetic

• Elastic/Spring

• Radiant

Answer explanation

A skateboarder at the top of a ramp has potential energy due to their height above the ground. This energy can be converted to kinetic energy as they descend the ramp.

Tags

NGSS.MS-PS3-2

A ball rolling down a hill has ____________ energy

• Nuclear

• Chemical

• Kinetic

• Elastic/Spring

• Radiant

Answer explanation

A ball rolling down a hill possesses kinetic energy, which is the energy of motion. As it rolls, its speed increases, demonstrating the conversion of potential energy (from height) into kinetic energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5