Uses of Energy
Energy Transformations
Behaviors of Light
Forces
Earth & Ecosystems
100
Which is an example of MECHANICAL energy?
A. Solar panels absorb light from the sun.B. A teacher charges a laptop.
C. Fire melts a wax candle.
D. A family paddles a kayak in the lake.
D - A family paddles a kayak in the lake
100
What is the energy transformation occuring when using an escalator?
Electrical --> Mechanical
100
Light travels the fastest through which medium?
Solids
Liquids
Gases
Gases
100
A train is sitting on a magnetic track. Earth's gravity is pulling down on the train with a force of 200,000 N. The magnetic track is pushing up on the train with a force of 200,000 N. Assuming all other forces are balanced, what is the net force on the train?
0 N - the forces are balanced.
100
What are the 5 steps to form sedimentary rock?
Weathering
Erosion
Deposition
Compaction
Cementation
200
Which is an example of LIGHT energy?
A. Fire melts a candle.
B. A siren alerts people that an ambulance is nearby.
C. A motor in a hairdryer turns.
D. A child uses a small lamp to read a book.
D. A child uses a small lamp to read a book.
200
What is the energy transformation happening when using a fan?
Electrical ---> Mechanical
200
Material Y __________________ light and material X _________________ light.
Fill in the blanks using: reflects or refracts
Material Y REFLECTS light and material X REFRACTS light.
200
What is the net force and direction of the car?
3000 N to the right (forward)
200
A rabbit creates a burrow in the soil underground. What is the biotic factor and what is the abiotic factor?
Biotic: Rabbit
Abiotic: Soil
300
Which is an example of Thermal energy?
A. A traffic light tells us when to stop and go.
B. A laptop is plugged in.
C. The wheels of a bike turn.
D. A man uses an iron to remove the wrinkles from his shirt.
D. A man uses an iron to remove the wrinkles from his shirt.
300
What is the energy transformation happening when using solar panels?
Light --> Electrical
300
This is an example of _________________________.
Refraction
300
What is the net force and direction of this problem?
50 N to the right
300
Which is NOT an inherited trait?
A. a giraffe has a four sectioned stomach.
B. The distance a giraffe travels to find food.
C. A giraffe has spots.
D. A giraffe is a herbivore.
B. The distance a giraffe travels to find food.
400
Which is an example of Electrical energy?
A. Wind turbines spin in the wind.
B. A campfire keeps a camper warm.
C. Fire melts a candle.
D. A student charges their phone.
D. A student charges their phone
400
What is the energy transformation happening when using wind turbines?
Mechanical --> Electrical
400
This is an example of _________________________.
Reflection
400
Is this a balanced or unbalanced force?
Balanced
400
What is the producer in this food web?
Plants and Fruits
500
Which is an example of SOUND energy?
A. Sirens of a police car.
B. A microwave heats up food.
C. Wind turbines spin.
D. A student uses a flashlight to demonstrate how light behaves.
A. Sirens of a police car.
500
What is the energy transformation happening when burning a candle?
Thermal --> Light
Chemical --> Thermal & Light
500
This is an example of _______________________.
Refraction
500
A lab team set up an investigation in which they pulled four blocks of different masses across the table.
Fill in the blanks of the question they are trying to answer.
How does the _____________________ affect the amount of force needed to move the block across _______________?
How does the mass affect the amount of force needed to move the block across the table?
500
What is needed in order to create Metamorphic Rock?
Heat and Pressure