U 2: Principles of Energy & Matter PRETEST
Quiz by Amanda Rogers
Grade 8
Science
Georgia Standards of Excellence
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30 questions
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- Q1Which of the following is true about energy?It can be created or destroyed depending on the situation.It always decreases in any physical process.It cannot be created or destroyed and is conserved in the universe.It can only be converted from one form to another.300sS8P2b
- Q2Which of the following is an example of potential energy?A moving carA running riverA stretched rubber bandA burning candle300sS8P2a
- Q3When does kinetic energy reach its maximum value?At any random positionAt the lowest point of an object's motionAt the highest point of an object's motionAt rest position300sS8P2b
- Q4Which factor affects the amount of kinetic energy possessed by an object?The object's sizeThe object's temperatureThe object's heightThe object's mass and velocity300sS8P2b
- Q5What is the relationship between kinetic and potential energy?Kinetic energy always increases potential energyThey are unrelated forms of energyThey can be converted into each otherPotential energy always increases kinetic energy300sS8P2b
- Q6When a pendulum reaches its highest point, what type of energy does it possess?Elastic potential energyThermal energyPotential energyKinetic energy300sS8P2b
- Q7A ball is thrown into the air. At the highest point of its trajectory, what type of energy does it possess?Kinetic energyPotential energyElectrical energyThermal energy300sS8P2a
- Q8Which of the following is an example of a chemical energy transformation?Burning wood to produce heatWind turbines converting wind energy into electricityA water dam generating hydroelectric powerSolar panels converting sunlight into electricity300sS8P2c
- Q9Which of the following is an example of a mechanical energy transformation?A pendulum swinging back and forthA chemical reaction releasing heatA nuclear power plant generating electricityA wind turbine converting wind energy into electricity300sS8P2c
- Q10Which of the following is an example of a thermal energy transformation?Boiling water on a stoveA car engine burning fuelA solar panel converting sunlight into electricityA wind turbine generating mechanical energy300sS8P2c
- Q11Which of the following is an example of an electrical energy transformation?A waterfall generating hydroelectric powerA flashlight emitting lightCharging a smartphone with a power adapterA candle burning and producing heat300sS8P2c
- Q12Which type of heat transfer involves the transfer of heat through electromagnetic waves?ConductionRadiationEvaporationConvection300sS8P2d
- Q13Which of the following factors does NOT affect the strength of electric fields?ChargeTemperatureMediumDistance300sS8P5c
- Q14Which of the following factors affects the strength of electric fields?Charge and distanceTemperature and pressureVoltage and currentResistance and frequency300sS8P5c
- Q15How does increasing the distance between charged objects affect the strength of electric fields?Decreases the strength of electric fieldsHas no effect on the strength of electric fieldsCan either increase or decrease the strength of electric fieldsIncreases the strength of electric fields300sS8P5c