Quiz on Vital Signs and Experimental Variables

A person is running a race. Which of the following will happen to their vital signs as they’re running?

• Blood pressure will decrease, Pulse will increase, Respiratory rate will increase

• Blood pressure will increase, Pulse will increase, Respiratory rate will increase

• Blood pressure will increase, Pulse will decrease, Respiratory rate will increase

• Blood pressure will decrease, Pulse will decrease, Respiratory rate will decrease

Tags

NGSS.HS-LS1-3

A researcher is interested in performing an experiment to determine whether listening to classical music while taking a quiz helps students do better. The researcher has two comparable classrooms with one classroom of students taking a quiz while listening to classical music and the other taking the same quiz without listening to classical music. What is the independent variable in this experiment?

• Different classrooms

• Listening to classical music

• Taking a quiz

• How students do on the quiz

Which of the following is essential for an experimental procedure to be repeatable and produce valid and reliable results?

• Includes a control

• Each step is clear and specific

• Includes multiple trials

• All of the above

A group of students performed an experiment to test whether performing yoga breaths affects heart rate. They hypothesized that performing yoga breaths would reduce heart rate. They first measured their heart rates while resting and then again while performing yoga breaths. They recorded their measurements. They repeated the experiment three times. Their results are shown in Table 1. What is the conclusion of this experiment?

• Performing yoga breaths reduces heart rate.

• Performing yoga breaths increases heart rate.

• Performing yoga breaths has no effect on heart rate.

• The experiment was inconclusive.

Tags

NGSS.MS-PS3-5

This microorganism causes the common cold. It can only multiply when inside a human host. It is so small, it can’t be seen with microscopes you will use in school, and it has the ability to mutate or change. What type of disease agent is this microorganism?

• Bacteria

• Virus

• Fungus

Tags

NGSS.MS-LS3-1

A patient comes to the ER complaining of the following symptoms: - Coughing (sometimes coughs up blood) - Fever - Chills - Fatigue - Weakness - Pain in the chest Based on the information you have, what illness does this patient most likely have?

• Common cold

• Influenza (Flu)

• Pneumococcal pneumonia

• Tuberculosis (TB)

All of the following are vital signs except...

• Temperature

• Blood Pressure

• Headache

• Pulse

If John was wanted to see what color of light plants grow under the best which of these would be a variable in the experiment.

• The type of plant

• Height of the plant

• Color of the light the plant is in

• How much water you give it

• All of these answers

Tags

NGSS.MS-LS1-5