Density Activity
What is the formula for density?
Density = Mass/Volume
Stored energy is what kind of energy?
Potential Energy
Which planet is closest to the sun?
Mercury.
True or False: Sound waves need a medium to travel through.
What is my name? Spell it.
Mrs. Karp
How do we know the orange will float?
It's density is less than that of water.
What are the two types of energy we spoke about together?
Kinetic and potential energy.
The star closest to earth is....
the sun
This is the name for the distance from crest to crest (highpoint to highpoint) of a wave.
wavelength
True or False: Mass is the same no matter what planet you are on.
True
True or False: My orange floats, but if I cut it in half the halves sink.
False.
The amount of gravitational potential energy in a system is dependent on what variable?
Height.
What is unique about Pluto's orbit?
It is not circular around the sun, but it is an oval.
Which is faster the speed of sound or the speed of light?
The speed of light.
What force is pulling objects towards Earth?
Gravity.
What is it called when we found the volume using a graduated cylinder and water?
Volume via Displacement
What kind of potential energy is a part of the marble run?
Gravitational potential energy.
Why is the sun dial only half a circle?
Because you cannot use it at night.
What is the unit for measuring sound?
Decibels
What is the boiling point of water?
212F or 100C
What is the density of water? Give units.
1 g/cm3 or 1 kg/m3
What is the law of conservation of energy?
At any point in a given system, the kinetic and potential energy should add up to the same amount.
OR
Energy cannot be created or destroyed, only transformed.
The tides are at their lowest when....
the sun and the moon align along a line with earth.
Does sound travel faster in water or air?
Water
What is the formula for the volume of a sphere?
4/3*pi*r^3