Scientific Method
What is the definition of a control variable?
The variable we keep the same throughout the experiment(s)
Which is bigger, a kilometer or a meter?
Kilometer
How many centimeters (cm) are in 1 meter (m)?
100
What does a meter stick measure?
length/distance
If I hit a target repeatedly on the bullseye, are my shots accurate, precise, both or neither?
Both
A prediction or statement that can be tested is a(n)...
hypothesis
The pneumonic (phrase to help remember) the metric units is...
King Henry Died By Drinking Chocolate Milk
Convert 5 km/hr to m/hr
5000 m/hr
If I see a negative exponent in scientific notation, standard notation would be a decimal or a whole number?
decimal
5 darts are thrown at a target and cluster together on the right side of the target. Are these darts accurate, precise, both, or neither?
Precise
I conduct an experiment to see if amount of sugar intake effects quality of sleep. What is the dependent variable?
Quality of sleep
What is 22 mg in cg?
2.2 cg
convert 2 m/s to m/hr
7200 m/hr
What is 3500 in scientific notation?
3.5 x 103
The standard temperature of a fridge is 3 degrees celsius. I measured the temp. of my fridge to be 1 degree celsius. What is the percent error?
66%
I conduct an experiment to see the effect of age on walking speed. What is the independent variable?
age
convert 35 dam to dm
3500
convert 36 m/hr to km/min
0.0006 km/min
3.6x10-4-4.8x10-4
-1.2x10-4
I know that water boils at 100 degrees celsius. When I conducted an experiment, I measured the boiling temp. of water to be 101.02 degrees celsius. What is the percent error?
1.02%
Put the steps of the scientific method in order:
testing, observation, hypothesis, communicate results, ask a question
1. observation 2. ask a question 3. hypothesis 4. testing 5. communicate results
Which is biggest 650 dag, 25 Hg, 1500 mg?
650 dag
Convert 54 ft/min to mi/s. 1 mi = 5280 ft
0.00017 mi/s
Multiply 1.8 x 105 and 2.3 x 10-3
4.14x102
Accuracy is a measure of...
correctness