Scientific Method and Astronomy Quiz

Which of the following is NOT one of the four steps of the scientific method?

• Formulation of problem

• Observation & experiment

• Interpretation

• Conclusion

What is a hypothesis in the context of the scientific method?

• A relationship or regularity between naturally occurring phenomena

• An initial scientific interpretation

• A set of phenomena

• A recognized group of stars

Which constellation is used as a label for regions of the sky and changes very little in the nighttime sky?

• Orion

• Polaris

• Ursa Major

• Cassiopeia

Who described the universe with the earth at the center and planets revolving around it in circular orbits?

• Copernicus

• Kepler

• Newton

• Ptolemy

According to Copernicus, how often does the earth rotate on its axis?

• Every 12 hours

• Every 24 hours

• Every 48 hours

• Every 72 hours

What did Kepler use to improve measurements of planetary motion?

• Copernicus's model

• Newton's law of gravity

• Tycho Brahe's improved measurements

• Galileo's telescope

What is the fundamental force that Newton's discovery of the law of gravity was dependent upon?

• Electromagnetic force

• Strong nuclear force

• Weak nuclear force

• Gravity

What is the SI unit for mass?

• Meter

• Second

• Kilogram

• Liter

Which of the following is a scalar quantity?

• Velocity

• Acceleration

• Speed

• Force

What is the acceleration due to gravity for objects in free fall at the earth's surface?

• 9.8 m/s

• 9.8 m/s²

• 9.8 km/h

• 9.8 km/h²