Unit 2 Review- Energy - 6th Science Ahee

Unit 2 Review- Energy - 6th Science Ahee

Use this to practice for the test FRIDAY

Poll

I understand that the Unit 2 Exam is this Friday at 1:00. I will study

• YES

• NO

We must know this for the test

And This

Multiple Select

Gravitational Potential Energy depends on 2 of the following

• How fast the object is moving

• Mass of the object

• Color of the object

• Height/Altitude of the object

Multiple Select

Kinetic Energy depends on an object's - CHOOSE 2

• Mass

• Altitude

• Ability to play the banjo

• Speed

• Materials

Potential Energy depends on an objects MASS and Height (Altitude)- Distance off the ground.

• Mass

• Height

Kinetic Energy Depends on an object's MASS and SPEED

• Mass

• Speed

Multiple Choice

At what point does the roller coaster have the highest KINETIC Energy?

• W

• V

• X

• Y

• Z

Multiple Choice

At what point are POTENTIAL energy and Kinetic Energy equal? Remember - they can change in to one another

• W

• V

• X

• Y

• Z

Multiple Choice

At what point does the Roller Coaster have the highest POTENTIAL Energy?

• W

• V

• X

• Y

• Z

Multiple Choice

At what point does the Roller Coaster have the LEAST POTENTIAL Energy?

• W

• V

• X

• Y

Remember - The Higher Altitude - The Higher the Potential Energy

The Higher SPEED/Movement - The higher the Kinetic Energy

• W- Highest Potential/Least Kinetic

• V - P and K are equal and transforming

• X - Highest Kinetic Energy

Remember - if you wanted to increase the potential energy of the coaster at W you could increase the MASS of the cart or make the track HIGHER

• Mass

• Altitude/Height

• 
  

Open Ended

Which of the 3 rocks has the greatest amount of POTENTIAL Energy? and Why??

Multiple Choice

The outer core of the Earth is comprised of hot molten metals - heat from the core moves outward and rises to the surface where it cools and slowly moves back down towards the core where it heats up and rises again... this is an example of -

• Radiation

• Conduction

• Convection

• Condensation

Fill in the Blanks

Multiple Choice

You're still at the beach and you successfully avoided burning your feet by jumping into the water. You feel the sun on your skin and realize that it was also the reason the sand was so hot. What type of thermal energy transfer happened to heat up the sand?

• Conduction

• Radiation

• Convection

• ConQueso

Multiple Choice

When you heat up a material - the particles inside move -

• Faster

• Slower

• The Same Speed

• To Canada

Multiple Choice

Two pieces of metal with different temperatures are placed next to one another so that they are touching. Which direction will the thermal energy move?

• The thermal energy will move from right to left because cold gives its energy to hot.

• The energy will not move because the objects are metal and metal is not a good conductor

• The thermal energy in both objects will increase

• The thermal energy will move from left to right because hot gives its energy to cold.

Thermal Energy is always transferred from hot to cold. Hot gives its energy to cold until they reach the same temperature.

the 75 degree metal would give some of its thermal energy to the 65 degree piece

Forms of Energy - MRS CENT

• Mechanical

• Radiant

• Sound

• Chemical

• Electrical

• Nuclear

• Thermal

Multiple Choice

Waves crashing on a beach is what type of energy form?

• Chemical

• Nuclear

• Thermal

• Mechanical

Multiple Choice

You have a big test on Friday and you want your body and brain to be working perfectly so you eat a nice balanced breakfast and lunch - why type of energy is the food?

• Electrical

• Sound

• Radiant

• Chemical

Multiple Choice

What type of energy is in a battery?

• Chemical

• Thermal

• Mechanical

• Electrical

This one can be tricky - the battery is full of chemical energy

A device you put it in may convert that into electrical energy

Open Ended

What are the 3 energy transformations that are happening in this image?

Open Ended

What are the 3 energy transformations happening in this picture?

Energy Transformations

Chemical - Electrical - Radiant (maybe some thermal too)

Energy Transformations

Chemical - Mechanical - Thermal

Multiple Select

Which of the following are Fossil Fuels? Pick 3

• Solar

• Petroleum (Oil)

• Coal

• Wind

• Natural Gas

Fossil Fuels - Oil, Natural Gas, Coal, Gasoline

• Advantages - Cheap, Relatively Abundant, produce lots of energy

• Disadvantages - Produce CO2 pollution, are nonrenewable

Multiple Select

Which of the following are RENEWABLE energy resources?

• Wind

• Geothermal

• Petroleum

• Solar

• Biofuel

Multiple Select

What are some disadvantages of Biofuel? Choose 3

• Uses what would otherwise be waste products/leftovers

• Has to be transported to where it can be processed

• Is made out of plants

• Power Plants that use biofuel are expensive to build

• Make less energy when burned than fossil fuels and still cause pollution

Multiple Choice

Which of these is not true about Geothermal Energy

• It is heat produced by the center of the earth

• It is available everywhere

• to harvest geothermal energy, special power plants must be built

• Geothermal energy is a renewable energy resource

Geothermal energy is found around tectonic plates/fault lines

Multiple Select

What are some advantages of Solar energy?

• The sun produces massive amounts of free energy

• Solar panels are difficult to dispose of

• Solar energy doesn't pollute the air/water

• The sun doesn't shine 24 hours a day due to weather and the night so an additional energy source or storage would be needed

Multiple Select

What TWO things effect potential energy?

• Color

• Mass

• Material

• Height/Altitude

• Conduction

Open Ended

A cliff diver is trying to impress their science teacher and show which cliff they would jump from to have the greatest potential energy.

Which Cliff should they jump from AND why do you think they chose that one?

Multiple Select

What TWO things impact Kinetic Energy

• Speed

• Color

• Volume

• Mass

• Shape

Multiple Choice

What type of energy does a solar panel collect?

• Electrical

• Radiant

• Chemical

• Mechanical