You are in Competition mode!

Enter to start; Spacebar to buzz; "Esc" to cancel a running question.

High School Set 7 (2013) - Round 1 - Question 6

See the original
Report a problem

TOSS-UP: Chemistry Multiple Choice

Your research results in a new surface temperature probe to obtain data on planet Mercury; however, the probe is highly reactive with chalcogen gases. Which of the following would best insulate the probe?

  • W. Diatomic fluorine
  • X. Diatomic chlorine
  • Y. Diatomic oxygen
  • Z. Helium
Click or hit Enter to start
High School Set 7 (2013) - Round 1 - Question 6

See the original
Report a problem

BONUS: Chemistry Short Answer

If 35 liters of neon gas at 77° Celsius is cooled, the volume drops to 10 liters. If the pressure remains constant, what is the final temperature of the gas, in degrees Celsius?

Click to start
High School Set 7 (2013) - Round 1 - Question 7

See the original
Report a problem

TOSS-UP: BIOLOGY Multiple Choice

What osteichthyes [os-tee-IK-thee-eez] was known from the fossil record for nearly 100 years before a living specimen was discovered?

  • W. Australian lungfish
  • X. Beluga sturgeon
  • Y. Coelacanth [SEE-luh-kanth]
  • Z. Bowfin
Click to start
High School Set 7 (2013) - Round 1 - Question 7

See the original
Report a problem

BONUS: BIOLOGY Short Answer

An athlete who normally has plenty of endurance is admitted to the emergency room with symptoms of sickle cell anemia, which include pain crisis in multiple limbs from lack of oxygen as a result of a track competition at high altitude. Suspecting sickle cell trait, doctors decide to screen the athlete’s beta-globin gene for sickle-cell mutations. What is the general genetic term that would best describe the athlete’s beta-globin genotype of the alleles being tested?

Click to start
High School Set 7 (2013) - Round 1 - Question 8

See the original
Report a problem

TOSS-UP: Physics Short Answer

The breakdown electric field of air is approximately 3 million volts per meter. Providing your answer in scientific notation, if a typical storm cloud is at an altitude of 2,000 meters, what is the voltage drop between the ground and the storm cloud just before the lightning strike?

Click to start
High School Set 7 (2013) - Round 1 - Question 8

See the original
Report a problem

BONUS: Physics Multiple Choice

A circuit consists of 5 capacitors of 5 microfarads each and a voltage source of 20 volts. If the capacitors are connected in series, what is the potential difference across each of them?

  • W. 4 microvolts
  • X. 4 volts
  • Y. 10 volts
  • Z. 20 volts
Click to start
High School Set 7 (2013) - Round 1 - Question 9

See the original
Report a problem

TOSS-UP: MATH Multiple Choice

What is the value of (i)21?

  • W. -i
  • X. i
  • Y. -1
  • Z. 1
Click to start
High School Set 7 (2013) - Round 1 - Question 9

See the original
Report a problem

BONUS: MATH Multiple Choice

Which of the following is equivalent to (𝑎-1 + 𝑏-1)-1 [open parenthesis 𝑎 to the power of negative 1 plus 𝑏 to the power of negative 1 close parenthesis to the power of negative 1]?

  • W. 𝑎𝑏/(𝑎+𝑏) [the fraction with numerator ab and denominator a plus b]
  • X. 𝑎 + 𝑏
  • Y. 𝑎²𝑏²
  • Z. 𝑎𝑏
Click to start
High School Set 7 (2013) - Round 1 - Question 10

See the original
Report a problem

TOSS-UP: Energy Multiple Choice

Which of the following sources gives the largest amount of radiation exposure?

  • W. A transcontinental airline flight
  • X. A chest X-ray
  • Y. Natural background radiation for one year
  • Z. Living within 50 miles of a nuclear power plant for one year
Click to start
High School Set 7 (2013) - Round 1 - Question 10

See the original
Report a problem

BONUS: Energy Multiple Choice

Fuel cells operating on methanol and air produce heat, electricity, and which of the following?

  • W. Carbon monoxide
  • X. Water
  • Y. Water and carbon dioxide
  • Z. Mercury
Click to start

Next Question Set