Mrs. Lights introduces energy and its forms, starting with the concept of work as force times distance. She explains kinetic and potential energy, using examples like roller coasters and bows. The video also covers other energy forms, including mechanical, thermal, chemical, electrical, electromagnetic, and nuclear energy, with practical examples. The session concludes with a summary of the discussed energy concepts.

What is the formula for work?

• Distance divided by force

• Distance times speed

• Force times distance

• Force divided by distance

Which unit is used to measure work and energy?

• Watts

• Meters

• Newtons

• Joules

Tags

NGSS.MS-PS3-4

What type of energy is associated with motion?

• Potential energy

• Kinetic energy

• Thermal energy

• Chemical energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

If you double the speed of an object, how does its kinetic energy change?

• It doubles

• It triples

• It quadruples

• It remains the same

Tags

NGSS.MS-PS3-1

What is gravitational potential energy dependent on?

• Temperature and heat

• Shape and elasticity

• Height and gravitational force

• Mass and speed

What is an example of elastic potential energy?

• A person standing on a hill

• A compressed spring

• A moving car

• A burning fire

Tags

NGSS.MS-PS3-2

Which form of energy is associated with the motion and position of everyday objects?

• Nuclear energy

• Chemical energy

• Thermal energy

• Mechanical energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

What type of energy is stored in chemical bonds?

• Electrical energy

• Mechanical energy

• Thermal energy

• Chemical energy

What process releases energy by splitting atomic nuclei?

• Thermal conduction

• Nuclear fission

• Nuclear fusion

• Electromagnetic radiation

What is an example of nuclear fusion?

• Splitting of uranium nuclei

• Electricity generation in a power plant

• Burning of coal

• Combining of hydrogen nuclei to form helium