Electromagnetism
Metals allow electricity to pass through them. They are known as...
Conductors
The hottest planet in the solar system
Venus
The loudness or quietness of a soundwave is known as...
Volume
The scientist who first observed the dispersion of white light into different colours
Sir Isaac Newton
This instrument is used to measure how hot or cold an object is
A thermometer
This instrument is used to measure weight
A forcemeter
If you get lost on the moon, you won't be able to use a compass to find direction. Why is that?
The moon has not magnetic poles.
What phenomenom is observed when the moon comes between the sun and the Earth?
A solar eclipse
Why do you see lightning before you hear the sound of a thunder?
Light travels faster than sound
The property that allows light to pass through so that objects behind can be distinctly seen.
Transparent.
Your weight on Earth and the moon are the same. True or false?
False
In magnetism, like (similar) charges...... and unlike (opposite) charges ........
repel, attract
A day on this planet is longer than a year.
Venus
How is a light wave different from a sound wave? (besides speed?)
It needs a medium to travel
This force helps a parachute slow down
Air resistance
In electrostatics, when you rub a balloon on your hair, what happens to the balloon and your hair? (Explain the electron movement and charge)
Electrons move to the balloon and it has a negative charge while your hair is positively charged due to loss of electrons
This instrument is used to observe distant objects in space.
Telescope
When you stand in an empty room and scream, you hear the scream repeat after a few seconds. That is sound reflecting off a surface. That reflection is known as ...
An echo
How do you make a shadow bigger?
Move the object closer to the source of light
Heat can be useful and not useful. Give an example of each situation.
Cooking, heating homes, etc
causes fire, destroys objects, etc
How is the speed of an object calculated and what is the standard unit of measurement?
Speed= Distance/Time (m/s)
Some liquids such as acids can conduct electricity. What do you call such liquids?
Electrolytes
These two movements of the Earth give us day & night and the seasons.
Rotation and revolution
The loudness of sound is measured in ...
Decibels
When in the desert, sometimes a person may see what looks like a lake (water). This is due to the refraction of light through a non-uniform medium. What is the person really seeing?
A mirage
When a force acts on an object, it can do one of three things. Name any one.
Move, change direction, change the shape of the object