Unit 1
Is the formula a Element or Compound?
H2O
Compound
What 2 things do you need to calculate density?
Mass & Volume
If an object has a net force of zero is it balanced or unbalanced?
Balanced
What type of energy is a light bulb giving off?
Light
Burning you hand is _________?
Conduction, convection, or radiation?
Conduction
How many Elements are in this this formula?
C6H12O6C2
3
If a metal can bend it is what?
Malleable
What 2 things do you need to calculate speed?
Distance & Time
Where does all of our energy come from?
The sun
The transfer of heat through liquids is________.
Convection
True or false:
Elements are pure substances.
True
If an element has properties of both metals, and nonmetals what is it?
If Aa'Liyah runs 400 meters in 10 Sec what is her speed?
40m/sec
List the energy transformation of plugging in a Toaster.
Electrical-thermal
The transfer of heat through the air
Radiation
True or False:
Elements are represented by a chemical formula.
False
Calculate the density:
Mass=100g
Volume=20ml
5g/ml
If Cayden is pulling a bag of chips to the left with a force of 5 N and Mrs. Waldon is pulling to the right with a force of 10 N, who will get the chips?
Mrs. Waldon
Can we create energy?
NO
How does heat transfer from one object to another
Hot to cold
Physical or Chemical Change:
Digesting food
Chemical
Calculate the Density of the cube:
Mass= 186g
Length of a side is 2cm.
11.625g/cm3
Calculate the average speed of the 2 trials:
Trial 1 Trial 2
25 ft 30 ft
4 sec. 5 sec.
6.1 ft/sec
What kind of energy is stored in donuts
Chemical
Heat _______ and Cold ________.
Rises;sinks