Show:
Electricity
Magnetism
Electromagnetism
Heat and Matter
Heat Transfer
100
Energy appears in many forms. Lightning is _______ energy.
What is electrical?
100
A magnet will attract which of the following... A - bar of soap B - iron nail C - plastic bottle cap D - glass marble
What is B - the iron nail?
100
You are given a battery, a nail with a wire wrapped around it, and some paperclips. In order to get the nail to pick up the paperclips you would have to... A - replace the iron nail with a wooden rod B - add more loops of wire the nail C - connect the ends of the wire together D - connect the ends of the wire to the ends of the battery
What is D - connect the ends of the wire to the ends of battery?
100
Heat is a form of ______.
What is energy?
100
What is the process by which heat energy gets to Earth from the sun?
What is radiation?
200
You are given a light bulb, some wire, and a switch to create a circuit. You are missing the _________.
What is the source of electric current or battery?
200
You have two magnets with the north poles facing each other. If you push them towards each other they will _______.
What is repel?
200
You have a coil of copper wire , a bar magnet, and an iron rod. To produce an electric current you can... A - put the wire near the north pole of the magnet B - touch the ends of the wire to the poles of the magnet C - bring the bar magnet near the end of the iron rod D - move the bar magnet back and forth inside the wire coil
What is D - move the bar magnet back and forth inside the wire coil?
200
Patti used a steel wrench to work on her bicycle on a hot, sunny day. She left the wrench on the hot concrete surface for an hour while she had lunch. When she returned, the wrench was very hot to touch. The wrench got so hot because... A - Heat transferred from the concrete to the wrench. B - Heat transferred from the wrench to the air. C - Heat transferred from the bicycle to the wrench. D - Heat transferred from the wrench to the concrete.
What is A - Heat transferred from the concrete to the wrench.
200
Brian wants to buy an ice cream from the vendor on the beach. He forgets to wear his sandals and burns his feet because of ____________ a type of heat transfer.
What is conduction?
300
A student makes a parallel circuit using a battery, a wire, a switch, and two bulbs. The first bulb burns out. Most likely ____ will happen next... A - the second bulb will glow brighter B - the second bulb will become dimmer C - the brightness of the second bulb will not change D - the second bulb will also burn out
What is C - the brightness of the second bulb will not change?
300
If you have the north and south pole of two magnets facing each other, the force that exists between them is the ____. A - electric force of attraction B - electric force of repulsion C - magnetic force of attraction D - magnetic force of repulsion
What is C - the magnetic force of attraction?
300
The purpose of the iron core in an electromagnet is to... A - to hold the loops of wire in place B - to make the magnetic force stronger C - to change the direction of the electric current D - to change the direction of the magnetic force
What is B - to make the magnetic force stronger?
300
When Joe put a cheeseburger sealed in a plastic bag into the microwave, there was not much air in the bag. After the cheeseburger was cooked, the plastic bag was full of air. The air came from... A - the fan in the microwave B - out of the cheesburger C - it was already in the bag and expanded as it was heated. D - from a chemical reaction where energy from the microwave creates oxygen molecules.
What is C - it was already in the bag and expanded as it was heated.
300
In a vacuum, heat transfer occurs by...
What is radiation?
400
Two light bulbs are connected to an energy source in two loops. This setup is an example of a(n) ____________. A - electromagnet B - parallel circuit C - static discharge D - series circuit
What is B - parallel circuit?
400
Of the following materials ________ is MOST LIKELY to be attracted to a magnet and then become magnetized itself. A - a piece of nickel B - rubber band C - aluminum can D - copper wire
What is A a piece of nickel?
400
A scientist observed that the needle of a compass moved when placed near a wire carrying an electric current. His observation proved... A - opposite charges attract B - electric current generates a magnetic field C - magnetized wire generates electricity D - like charges repel
What is B - electric current generates a magnetic field?
400
The outside of a glass of iced tea sometimes gets moist because... A - Water molecules from the tea pass through the glass B - Water vapor in the air turns to liquid as it cools and condenses on the glass. C - Glass attracts water droplets that are floating in the air. D - Melting ice creates more water than the glass can hold.
What is B - Water vapor in the air turns to liquid as it cools and condenses on the glass?
400
Convection currents do NOT take place in ______. A - liquids B - gases C - solids D - the ocean
What is C - solids?
500
__________ is true of parallel circuits but NOT of series circuits. A - They provide more than one path for the current to flow. B - They may use batteries as an energy source. C - They may include more than one load. D - They may use switches to control the flow of current.
What is A - they provide more than one path for the current to flow.
500
The phenomena caused by the earth's magnetic field and solar flares from the sun is called the ______ ______.
What is the Aurora Borealis or the Northern Lights?
500
A _______ uses an electromagnet to work. A - electric motor B - pulley C - magnifying glass D - electric generator
What is A - electric motor?
500
A hot air balloon rises because... A - molecules become lighter when heated B - molecules move faster and farther apart when heated C - molecules are less attracted by gravity when heated D - molecules become charged and repel each other when heated
What is B - molecules move faster and farther apart when heated (become less dense)?
500
Beaker X contains 100 mL of water and beaker Y contains 250 mL of water. Each beaker is heated on a hot plate at the same medium heat setting for five minutes. Predict what will happen to the water temperature in the beakers. A - Beaker X will have the highest temperature. B - Beaker Y will have the highest temperature. C - Beaker X and Beaker Y will have the same temperature. D - Beaker Y will have a temperature of 150 degrees.
What is C - Beaker X and Y will have the same temperature?