Show:
Definitions
Scientific Method
Exponents/Scientific Notation
Units/Dimensional Analysis
Grab Bag
100
_______ is the branch of physical science concerned with the composition, properties, and reactions of substances. a. Biology b. Chemistry c. Physics d. Physical Science
b. Chemistry
100
Does science prove things?
No, science can only disprove things.
100
10^2 x 10^4=
10^6
100
2.87 kilograms is how many grams?
2870 grams
100
Which is heavier: a pound of lead or a pound of feathers?
They weigh the same. ;)
200
_______ is a measure of the amount of matter present in an object. a. Volume b. Weight c. Mass d. Pounds
c. Mass
200
Science must be: a. Testable b. Reproducible c. Predictive d. Explanatory e. All of the above
e. All of the above
200
What is 0.000000786 in scientific notation?
7.86 x 10^-7
200
How much is 3.2 L + 568 mL in mL?
3768 mL
200
Name two systems of units used today. Which system does science employ?
English and metric systems Metric system
300
_______ is a measure of the amount of 3-D space occupied by a substance. a. Volume b. Weight c. Mass d. Kilograms
a. Volume
300
Which is not a step of the scientific method? a. Use the hypothesis to make a prediction. b. Make observations. c. Prove the hypothesis d. Invent a hypothesis. e. Test predictions of hypothesis by experiment.
c. Prove the hypothesis.
300
What is 6^-7 divided by 6^-3?
6^-4
300
How many meters long is an object that is 2.3 cm long? (Give answer in scientific notation)
2.3 x 10^-2 cm
300
How many L of water can be poured into an 8.6kL container?
8600L
400
_______ is the measure of the gravitational force for the matter in an object. a. Mass b. Weight c. Volume d. kilograms
b. Weight
400
What is a theory according to science?
Also known as a model, a theory is a set of tested hypotheses that gives an overall explanation of some part of nature. It is an explanation of something observed in nature. It is an explanation that has been verified over and over by experimental evidence.
400
What is 870000 plus 6.75 x 10^4 in scientific notation?
9.375 x 10^5
400
If a person is traveling at 60 km/hr, how fast is he/she traveling in m/s?
16.67 m/s
400
1kg = 2.2lbs. What are the two unit factors I can make from this equality?
1kg/2.2lbs 2.2lbs/1kg
500
A measurement is defined as "a quantitative observation consisting of two parts." What are those two parts?
a number and a scale (unit) e.g. 25 cm
500
Define hypothesis.
A possible explanation for the observation. It must be testable and falsifiable.
500
What does 8^1/2 x 8^5/2 x 8^-4 equal?
8^-1 or 1/8
500
Which is more expensive per L: a kL of milk for $2500 or a mL of milk for $0.03?
The mL of milk is more expensive. $30/L > $2.5/L
500
Convert 5 mg to kg using dimensional analysis. (Give answer in scientific notation)
(5mg) x (1g/1000mg) x (1kg/1000g) = 0.000005 grams = 5 x 10^-6