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2nd semester final
Question | Answer |
---|---|
The frequency of a sound is describing ... | The pitch |
The type of radiation with the longest wavelengths would be | radio waves |
The type of radiation with the highest energy would be the | gamma rays |
The type of radiation used to kill cancer cells is | gamma rays |
When waves are moving you are actually seeing | the energy move |
The order of the electromagnetic spectrum from longest wavelength to shortest wavelength is | radio, micro, infrared, visible light, ultraviolet, x-ray, and gamma |
A properly lit bunsen burner has | A tiny distinct blue triangle |
T or F The following equation is balanced Na + Br = NaBr2 | False |
The law of conservation of energy is | Matter cannot be created nor destroyed only conserved |
How many carbon atoms are in a glucose molecule C6H12O6 | 6 |
How many sodium atoms are in 7Na3PO4 | 21 |
When you add the charges of a compound, what should they equal | 0 |
In a chemical formula, the products are found where | the right side of the equation after the arrow |
what are the 7 diatomic elements | H2 N2 F2 O2 I2 Cl2 Br2 |
When two or more substances combine to make one substance it is called | a synthesis reaction |
T or F I am going to rock this test | True of course |
Current is equal to voltage difference divided by the resistance | Ohm's law |
A circuit that only allows one path for electrons to flow | series |
A circuit with two or more paths to flow | parallel |
a material to which electrons do not flow easily | insulator |
like charges __________ one another | repel |
where does an object have the most potential energy | At its highest point |
ANY Energy in motion is known as | Kinetic enregy |
The equation for potential energy | PE=mgh |
The equation for kinetic energy is | KE=1/2mv^2 |
Waves that move along the medium, such as a slinky, | compressional |
Waves that move perpendicular to the medium are | transverse |
the amplitude of a wave is describing the | energy in the wave |
A one time spark or discharge of electrons is known as | static electricity |
a continuous flow of electrons is known as | dynamic electricity |