Measurement
What tool do you use to measure the temperature of a liquid in degrees Celsius?
A thermometer.
What are the three states of matter?
Solid, liquid, gas.
What is a force?
Light energy
What type of energy does a lamp give off?
Light energy.
Before measuring the mass of a paper clip, what is a reasonable estimate of its mass?
About 1 gram.
What happens to a solid when it is heated?
It may melt into a liquid.
Give an example of a push
Pushing a door open
What are examples of sound energy?
Music, speech, and noise.
How do you measure the temperature of a solid?
Solids are usually not measured in Celsius directly; you can measure the temperature of a liquid around it to infer
What is a gas?
A state of matter that has no fixed shape or volume.
Give an example of a pull.
Pulling a wagon.
What are examples of light energy?
Sunlight, light from a flashlight, or a lamp.
What is the importance of estimating before measuring?
It helps you predict the outcome and understand the range of expected results
Predict what happens to a liquid when it cools down
It may freeze into a solid.
What can you test for in an investigation on push and pull?
The strength of the forces or how far an object moves.
What are examples of heat energy?
The warmth from a heater or the heat from the sun.
Why is it important to use the correct units when measuring?
Using the correct units ensures accuracy and clarity in communication
How can you determine if a substance is a solid, liquid, or gas?
By observing its shape and volume
How do magnets attract and repel?
Opposite poles attract, and like poles repel.
What is mechanical energy?
The energy of an object due to its motion or position.