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 Grade 9 :: Magnetism and Electricity by jlovering
 Kaitlyn builds a project in which light bulb A and light bulb B are in parallel circuits. The project has a switch and uses a battery for its source of voltage. She connects her battery and neither light turns on. Which of the following could possibly be the problem with her project? Light bulb A is broken. Light bulb B is broken The switch is not closed Any of these would cause the problem described
 Grade 9 :: Energy and Work by der1228
 Which form of energy does a plant store when light is transformed during photosynthesis? chemical energy thermal energy mechanical energy electrical energy
 Grade 9 :: Simple Machines by jlovering
 When using a broom to sweep a floor, your mechanical advantage will be less than 1 and your fulcrum will be your hand at the top of the broom. This means the broom acts as a: Class 1 Lever Class 2 Lever Class 3 Lever Class 4 Lever
 Grade 9 :: Magnetism and Electricity by jlovering
 When you are at home, turning off a light usually does not turn off your T.V. This is because: Most electrical devices in a house are on parallel circuits Most electrical devices in a house are on series circuits They have different sources of voltage A T.V. does not require electricity.
 Grade 9 :: Magnetism and Electricity by jlovering
 The total amount of energy delivered every second to a resistor is a measure of: Volts Power Current Resistance
 Grade 9 :: Magnetism and Electricity by jlovering
 Complete the following statement:If you increase the resistance in a series circuit,... The current will also increase The current will decrease The voltage will increase The voltage will decrease
 Grade 9 :: Simple Machines by jlovering
 Austin needs to lift a 300 N object using only 100 N of force. To accomplish this, he will need a simple machine with a mechanical advantage of what? 3 0.3 90% None of the Above
 Grade 9 :: Magnetism and Electricity by jlovering
 Zach creates a circuit with a voltage of 12 volts and 3 parallel resistors. If all of the resistors are equal, what is the voltage drop for at each resistor? 4 Volts 12 Volts 36 Volts None of the above
 Grade 9 :: Magnetism and Electricity by jlovering
 Which of the following always remains constant on a series circuit? current voltage resistance power
 Grade 9 :: Magnetism and Electricity by jlovering
 Look at the drawing below. If each resistor is 2 Ohms, what is the total resistance of the circuit? 3 Ohms 0 Ohms 1 Ohm 6 Ohms
 Grade 9 :: Magnetism and Electricity by jlovering
 Which of the following is the same everywhere on a series circuit? current voltage resistance power
 Grade 9 :: Magnetism and Electricity by jlovering
 Brooke was watching T.V., charging her iPod, heating up her curling iron, and blow-drying her hair. When she plugged in her super-deluxe Austin Mahone singing make-up mirror with extra bright halogen bulbs the power went out and she caught a faint scent of burning rubber. What best explains what happened? Each device she added to the series circuit increased the total resistance. The voltage had to increase to provide current until it became so high it had to shut down. Every device she plugged in acted as a new resistor on a parallel circuit. This increased the resistance to the point that there was not enough voltage to power all the devices. Every device she plugged in acted as a new resistor on a parallel circuit. This would decrease the overall resistance on the parallel circuit and therefore increase the current flowing in the wires. Increasing the current generates more heat in the wire, causing a switch called a "circuit breaker" to open, stopping the flow of current in an attempt to prevent fire. Wizards obviously.
 Grade 9 :: Magnetism and Electricity by jlovering
 Look at the drawing below. If the voltage is 6 volts and each resistor is 2 Ohms, what is the total resistance of the circuit? 3 Ohms 0 Ohms 1 Ohm 6 Ohms
 Grade 9 :: Magnetism and Electricity by jlovering
 You invent a device that requires a minimum of 5 amps to operate, but can only handle a maximum of 8 amps without being destroyed. Assuming that it will be plugged into an outlet in the U.S. which has a voltage between 110 Volts and 120 Volts, what range of resistance can your object have to work safely? Between 15 Ohms and 22 Ohms Between 13.75 and 24 Ohms Between 30 and 40 Ohms None of the above
 Grade 9 :: Magnetism and Electricity by jlovering
 The amount of energy per Coulomb of charge in a circuit is determined by what property? Current Resistance Voltage Power
 Grade 9 :: Waves by jlovering
 EM radiation with frequencies greater than visible light would include which of the following? X-Rays Microwaves Infrared All of the above
 Grade 9 :: Waves by LBeth

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 Which electromagnetic waves are the longest? radio violet gamma ultraviolet
 Grade 9 :: Waves by LBeth

This question is a part of a group with common instructions. View group »

 Wave energy relates directly with frequency. Which of the following types of radiation has the greatest amount of energy? radio gamma ultraviolet microwave
 Grade 9 :: Waves by LBeth

This question is a part of a group with common instructions. View group »

 1 micron ($mum$ is 0.000001 meters. The wavelength of which type of radiation is best measured in microns? x-ray radio infrared microwave
 Grade 9 :: Waves by LBeth

This question is a part of a group with common instructions. View group »

 What type of wave could measure 5 meters in length? x-ray radio visible infrared
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