Energy Basics
Energy
What two factors affect kinetic energy?
Mass and speed
In Spongebob Squarepants, what animal is Squidward?
Octopus
Name one renewable energy resource
Solar, wind, hydroelectric, biomass, geothermal
What is the Law of Conservation of Energy?
Energy cannot be created nor destroyed.
What is the difference between an energy transformation and an energy transfer?
transformation changes energy from one form to another
transfer moves energy from one object to another
What two factors affect gravitational potential energy?
Mass and height (position)
What does WWE stand for?
World Wrestling Entertainment
Name one nonrenewable energy resource.
Coal, oil, natural gas, nuclear
A baseball bat hits a baseball. What is the transfer of energy?
From the bat to the baseball
What type of energy is stored in a stretched rubber band?
elastic potential
What happens to potential and kinetic energy as an object falls?
Potential energy decreases, kinetic energy increases
Who was the first Marvel Character to appear in Fortnite?
Thanos
Why is coal considered nonrenewable?
Coal takes millions of years to form and cannot be replaced on a human timescale.
A bicycle slows down because of friction. What happens to some of its kinetic energy?
It is transformed into thermal energy and sound energy
A person eats breakfast and then rides a bicycle. What energy transformation occurs?
chemical energy → mechanical energy + thermal
A 2 kg ball travels at 2 m/s. Another 2 kg ball travels at 4 m/s. Which ball has more kinetic energy, and why?
The 4 m/s ball, because kinetic energy increases significantly as speed increases
In the U.S., what is the top-selling flavor of ice cream?
Vanilla
Identify the energy resource in the following transformation:
Light -> Electrical
Solar
What are the energy transformations in a flashlight?
Chemical → Electrical → Light + Thermal.
A car burns gasoline and moves down the road. It also produces heat and sound. Has energy been lost? Explain.
No, energy has not been lost. Chemical energy from the gasoline is transformed into mechanical, thermal, and sound energy.
Which has more KE: a 2-kg ball moving a 8 m/s or a 5-kg ball moving at 4 m/s? Calculate and explain.
The 2 kg ball, its KE is 84 J compared to the 5 kg ball at 40 J
What is the most popular YouTube video of all time?
Baby Shark Dance (Pinkfong)
Identify the possible energy resources in the transformation below.
Mechanical -> Electrical
Hydroelectric, wind
A student says, "The energy disappeared when the basketball stopped bouncing." Is the student correct? Explain.
No, the energy was not destroyed. Some of the basketball's kinetic energy was transformed into thermal energy and sound energy, while total energy was conserved.