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Sound is made when a drumstick hits the drum. This happens because the force of the drumstick on the drum causes –
air in the pipe vibrates
vibration
Scientists validate theories by repeated investigations.
thermal energy
thermometer, hot plate, stopwatch
oven mitt
liquid becomes a gas
refracted
Matter can undergo changes. When water boils, a –
air in the pipe vibrates
vibration
Scientists validate theories by repeated investigations.
thermal energy
thermometer, hot plate, stopwatch
oven mitt
liquid becomes a gas
refracted
Which of these is a poor conductor of heat?
air in the pipe vibrates
vibration
Scientists validate theories by repeated investigations.
thermal energy
thermometer, hot plate, stopwatch
oven mitt
liquid becomes a gas
refracted
Which of the following statements is true about how scientists validate theories?
air in the pipe vibrates
vibration
Scientists validate theories by repeated investigations.
thermal energy
thermometer, hot plate, stopwatch
oven mitt
liquid becomes a gas
refracted
Light travelling through a pair of eyeglasses is:
air in the pipe vibrates
vibration
Scientists validate theories by repeated investigations.
thermal energy
thermometer, hot plate, stopwatch
oven mitt
liquid becomes a gas
refracted
Blowing through a pipe can produce a sound because the –
air in the pipe vibrates
vibration
Scientists validate theories by repeated investigations.
thermal energy
thermometer, hot plate, stopwatch
oven mitt
liquid becomes a gas
refracted
What is the energy of moving particles that produces heat?
air in the pipe vibrates
vibration
Scientists validate theories by repeated investigations.
thermal energy
thermometer, hot plate, stopwatch
oven mitt
liquid becomes a gas
refracted
A student wants to find out how much faster water heats up when it is in a copper pot than when it is in a steel pot. Which set of tools will be most useful for this investigation?
air in the pipe vibrates
vibration
Scientists validate theories by repeated investigations.
thermal energy
thermometer, hot plate, stopwatch
oven mitt
liquid becomes a gas
refracted
Check it!