8th Grade Science Midterm Quiz

12 Questions | Total Attempts: 393

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8th Grade Science Quizzes & Trivia

8th Grade Science Midterm


Questions and Answers
  • 1. 
    The Sun on a beach, transferring radiant energy to the sand. How does thermal energy of the molecules making up the sand change?
    • A. 

      Thermal Energy does not change

    • B. 

      Thermal energy increases

    • C. 

      Thermal energy increases then decreases

    • D. 

      Thermal energy decreases

  • 2. 
    Which type of energy powers machines through the flow of electrons through a circuit?
    • A. 

      Electromagnetic

    • B. 

      Nuclear

    • C. 

      Thermal

    • D. 

      Electrical

  • 3. 
    Which form of energy refers to the total amount of kinetic and potential energy of a rollar coaster as it  moves along the tracks?
    • A. 

      Electrical

    • B. 

      Nuclear

    • C. 

      Mechanical

    • D. 

      Electromagnetic

  • 4. 
    Which form of energy travels in the form of waves through the vacuum of space
    • A. 

      Nuclear

    • B. 

      Electrical

    • C. 

      Electromagnetic

    • D. 

      Thermal

  • 5. 
    Which statement is false about electromagnetic radiation?
    • A. 

      Microwaves are a form of electromagnetic radiation

    • B. 

      Infrared radiation can be detected by the human eye

    • C. 

      Visible light is between infrared and ultraviolet rays on the elctromagnetic spectrum

    • D. 

      Electromagnetic radiation does not require a medium through which to travel

  • 6. 
    Fred puts his hand on a near glowing bulb of a lamp which is plugged into an electrical outlet. The air close to the bulb feels warm. why?
    • A. 

      100% of the electrical energy is being converted to visable light

    • B. 

      100% of the electrical energy is being converted into heat

    • C. 

      Some of the electrical energy is being converted into visable light and some into heat

    • D. 

      Some of the electircal energy is converted into gravitational potential energy

  • 7. 
    Changes in what two factors determine an objects acceleration?
    • A. 

      Instantaneous speed and average speed

    • B. 

      Position and mass

    • C. 

      Mass and velocity

    • D. 

      Speed and direction

  • 8. 
    What does a negative acceleration mean?
    • A. 

      The object is not moving

    • B. 

      The object is slowing down

    • C. 

      The object is speeding up

    • D. 

      The object is moving at a constant speed

  • 9. 
    You are driving to school in your car. which would NOT effecct the velocity of the car?
    • A. 

      Adding another passenger

    • B. 

      Slowing down as the car nears a stop sign

    • C. 

      Speeding up after leaving a residential area

    • D. 

      Making a left turn into the school parking lot

  • 10. 
    Which unit could NOT be used to describe the acceleration of an object?
    • A. 

      Meter per second

    • B. 

      Kilometer per second squared

    • C. 

      Mile per hour squared

    • D. 

      Meter per second squared

  • 11. 
    Which unit could NOT describe the average speed?
    • A. 

      Kilometer per hour

    • B. 

      Newton-meter

    • C. 

      Meter per second

    • D. 

      Kilometer per secnd

  • 12. 
    How would the gravitational attraction between 2 objects change if the mass if one increased?
    • A. 

      The gravitational attraction would not change

    • B. 

      The gravitational attraction would decrease

    • C. 

      The gravitational attraction would increase

    • D. 

      The gravitational would increase at first then decrease