Average Round Science Quiz Bee

A car accelerates uniformly from rest to a speed of 20 m/s in 5 seconds. What is the acceleration of the car?

• 2 m/s²

• 4 m/s²

• 5 m/s²

• 10 m/s²

A 10 kg object is lifted to a height of 2 meters. What is the potential energy of the object at this height? (Assume g = 9.8 m/s²)

• 19.6 J

• 98 J

• 196 J

• 980 J

Which of the following statements is true about the speed of light in different media?

• Light travels fastest in water.

• Light travels fastest in glass.

• Light travels fastest in air.

• Light travels fastest in a vacuum.

A wave has a frequency of 50 Hz and a wavelength of 2 meters. What is the speed of the wave?

• 25 m/s

• 50 m/s

• 100 m/s

• 200 m/s

Which of the following is the primary function of the mitochondria in cells?

• Protein synthesis

• Photosynthesis

• Energy production

• DNA replication

In which phase of the cell cycle does DNA replication occur?

• G1 phase

• S phase

• G2 phase

• M phase

Which of the following best describes the process of osmosis?

• Movement of solutes from high to low concentration

• Movement of water from high to low concentration

• Movement of solutes from low to high concentration

• Movement of water from low to high concentration

What is the molarity of a solution containing 5 moles of solute in 2 liters of solution?

• 2.5 M

• 5 M

• 10 M

• 2 M

Which of the following elements has the highest electronegativity?

• Oxygen

• Fluorine

• Chlorine

• Nitrogen

What is the main product of the combustion of hydrocarbons?

• Carbon monoxide and water

• Carbon dioxide and water

• Carbon and water

• Carbon dioxide and hydrogen