Tools and precautions
Before you read
Test yourself first: 5 questions
Question 1 of 5
Accuracy in a measurement means the measurement is:
Answer: B. Accuracy describes how close a measurement is to the true or accepted value.
Question 2 of 5
Repeating measurements during an experiment improves the ____ of the results.
Answer: B. Repeated measurements improve reliability by reducing the effect of random error.
Question 3 of 5
Quantitative data is data that is:
Answer: B. Quantitative data is expressed in numbers/measurements. Qualitative data describes qualities.
Question 4 of 5
Before beginning any laboratory activity, you should first:
Answer: B. Reading and following safety instructions first prevents accidents.
Question 5 of 5
Wearing safety goggles in the lab protects your:
Answer: B. Goggles shield the eyes from splashes and flying particles.
Keep the streak going with more questions like these, each with a full rationale.
