Energy in Chemistry

The Law of Conservation of Energy states that ...

• Energy can be created but not destroyed

• Energy cannot be created or destroyed but can be transferred or transformed.

• Energy cannot be created but can be destroyed.

Answer explanation

The Law of Conservation of Energy states that energy cannot be created or destroyed but can be transferred or transformed.

Tags

NGSS.HS-PS3-2

At higher temperature

• Particles in an object have less kinetic energy

• particles in an object move faster

• a gas contracts

• particles in an object move slower

Answer explanation

Particles in an object move faster

Tags

NGSS.HS-PS2-1

Unlike Kinetic energy, Potential energy is __________.

• distributed

• stored

• destroyed

• created

Answer explanation

Potential energy is stored, unlike Kinetic energy which is associated with motion.

Energy stored in the bonds of chemical compounds that is released during certain reactions is called...

• Sound

• Elastic

• Radiant

• Chemical

Answer explanation

The correct choice is 'Chemical' because energy stored in the bonds of chemical compounds that is released during certain reactions is referred to as chemical energy.

Tags

NGSS.HS-PS1-4

What is the energy of moving objects, or the energy of moving parts of a machine?

• electrical energy

• solar energy

• mechanical energy

• potential energy

Answer explanation

The correct choice is mechanical energy, which refers to the energy of moving objects or parts of a machine.

Tags

NGSS.HS-PS3-3

Energy is the ability to do work or cause changes.

• True

• False

Answer explanation

Energy is indeed the ability to do work or cause changes, making the statement true.

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-1

What kind of energy is in a moving skateboard?

• Potential

• Kinetic

Answer explanation

The correct kind of energy in a moving skateboard is Kinetic energy, which is the energy of motion.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

 What kind of energy is in gasoline in a car tank (car is not on)?

• Potential

• Kinetic

Answer explanation

Gasoline in a car tank contains potential energy when the car is not on, as it has the potential to be converted into kinetic energy when the car is running.

What kind of energy is in a person running?

• Potential

• Kinetic

Answer explanation

The energy in a person running is Kinetic energy as it is the energy of motion.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What kind of energy is in a battery?

• Potential

• Kinetic

Answer explanation

The energy in a battery is potential energy, which is stored energy that has the potential to do work when released.