All flashcards
Flashcard 1: Which type of energy transfer occurs when electricity flows through wires to power a fan?
Answer: Electric current energy transfer. Moving electrons carry energy through the circuit to power devices.
Flashcard 2: Which type of energy transfer occurs when a flashlight beam makes a dark hallway visible?
Answer: Light energy transfer. Battery powers bulb to emit electromagnetic waves we see as light.
Flashcard 3: Which type of energy transfer is happening when a toaster heating element makes bread warm?
Answer: Heat energy transfer. Electrical resistance in the element converts electricity to thermal energy.
Flashcard 4: Which type of energy transfer is happening when a laser pointer makes a red dot on a poster?
Answer: Light energy transfer. Laser emits focused beam of electromagnetic waves in visible spectrum.
Flashcard 5: Which type of energy transfer is happening when a space heater warms the air in a room?
Answer: Heat energy transfer. Heater converts electricity to thermal energy that warms surrounding air.
Flashcard 6: Which type of energy transfer is happening when thunder is heard after a lightning flash?
Answer: Sound energy transfer. Lightning creates shock waves that propagate as sound through air.
Flashcard 7: Which type of energy transfer is happening when you see a rainbow after it rains?
Answer: Light energy transfer. Sunlight refracts through water droplets, separating into colors.
Flashcard 8: Which type of energy transfer is happening when a microwave heats food?
Answer: Heat energy transfer. Microwaves cause water molecules to vibrate, creating thermal energy.
Flashcard 9: What type of energy transfer occurs when a battery sends energy through a circuit to a bulb?
Answer: Electric current energy transfer. Chemical energy in battery converts to electrical flow in circuit.
Flashcard 10: What type of energy transfer occurs when a TV screen sends images to your eyes?
Answer: Light energy transfer. Screen emits electromagnetic radiation in the visible spectrum.
Flashcard 11: What type of energy transfer occurs when a bell rings and the sound reaches your ears?
Answer: Sound energy transfer. Bell vibrations create pressure waves that travel through air.
Flashcard 12: What type of energy transfer happens when a drum is hit and you hear it across the room?
Answer: Sound energy transfer. Vibrations travel through air as sound waves to reach your ears.
Flashcard 13: What type of energy transfer occurs when sunlight warms your skin on a clear day?
Answer: Heat energy transfer. Radiation from the sun transfers thermal energy to your skin.
Flashcard 14: What type of energy transfer occurs when you touch a hot mug and your hand feels warmer?
Answer: Heat energy transfer. Thermal energy moves from hot mug to cooler hand by conduction.
Flashcard 15: What type of energy transfer is happening when a battery powers a flashlight circuit?
Answer: Electric current energy transfer. Electric charges flow through the circuit.
Flashcard 16: Identify the energy transfer type when a lamp shines and the room becomes brighter.
Answer: Light energy transfer. Lamp emits visible light waves.
Flashcard 17: Identify the energy transfer type when a speaker plays music and you hear it across the room.
Answer: Sound energy transfer. Speaker vibrations create sound waves in air.
Flashcard 18: Which energy transfer type is the movement of electric charges through a wire?
Answer: Electric current energy transfer. Electrons move through conductors.
Flashcard 19: Which energy transfer type is thermal energy moving from a warmer object to a cooler object?
Answer: Heat energy transfer. Heat flows from hot to cold objects.
Flashcard 20: Which energy transfer type travels as waves that let you see objects clearly?
Answer: Light energy transfer. Light consists of electromagnetic waves we can see.
Flashcard 21: Which energy transfer type involves vibrations traveling through air to your ears?
Answer: Sound energy transfer. Sound waves are vibrations in air.
Flashcard 22: Identify the energy transfer type when you touch a warm mug and your hand warms up.
Answer: Heat energy transfer. Heat flows from warm mug to cooler hand.
Flashcard 23: What type of energy transfer is happening when a stove burner warms a metal pot?
Answer: Heat energy transfer. Thermal energy flows from hot burner to cooler pot.
Flashcard 24: What type of energy transfer is happening when you hear a school bell ringing?
Answer: Sound energy transfer. Vibrations from the bell travel through air as sound waves.
Flashcard 25: What type of energy transfer is happening when sunlight helps you see outside?
Answer: Light energy transfer. Light waves from the sun enable vision.
Flashcard 26: What type of energy transfer occurs when a drum is struck and the sound travels to a listener?
Answer: Sound energy transfer. Drum vibrations create sound waves in air.
Flashcard 27: What type of energy transfer occurs when an electric doorbell button is pressed and current flows in the circuit?
Answer: Electric current energy transfer. Button completes circuit for current flow.
Flashcard 28: What type of energy transfer occurs when a microwave heats food (the food becomes warmer)?
Answer: Heat energy transfer. Microwaves transfer thermal energy to food molecules.
Flashcard 29: What type of energy transfer occurs when you see lightning before you hear thunder?
Answer: Light energy transfer. Lightning emits visible light that travels faster than sound.
Flashcard 30: Which option is an example of electric current transfer: wind noise, sunlight, a hot pan, or a fan running from a wall outlet?
Answer: A fan running from a wall outlet. Outlet provides electric current to power fan.