SC/250 SC250 SC 250 UNIT 9 QUIZ

1.

Question :

If your car is moving at 100 km/hr, how many kilometers will your car travel in 15 minutes?

Student Answer:

 2 km

 5 km

 25 km

 50 km

 100 km

Question 2.

Question :

Kepler's first law of planetary motion states that:

Student Answer:

 all planets orbit in circular paths.

 the Earth is the center of the universe.

 all planets orbit in elliptical paths.

 solar system bodies are structured as spheres within spheres.

 a planet's velocity is constant during its orbit around the Sun.

Question 3.

Question :

Which of these statements is not true about Copernicus?

Student Answer:

 He hypothesized that planetary orbits were circular.

 He thought that Ptolemy's ideas about the shape of orbits were correct.

 He provided the first serious alternative to Ptolemy's system.

 His model of the universe placed the Sun, rather than the Earth, at the center.

 He used telescopic observations to confirm his theories.

Question 4.

Question :

What predicable event can be observed each year by looking from the central semi-circle of upright stones over the heel stone at Stonehenge?

Student Answer:

 The setting of the Sun on the day of onset of winter

 The rising of the Sun on the first day of the start of summer

 The setting of the Sun on the day of the end of autumn

 The rising of the Sun on the day of mid-summer

 The setting of the Sun on the day of mid-winter

Question 5.

Question :

Whose 17th century data was used to initially understand the elliptical orbits of planets?

Student Answer:

 Tycho Brahe

 Johannes Kepler

 Nicolas Copernicus

 Claudius Ptolemy

 Galileo Galilei

Question 6.

Question :

Angular momentum has to do with objects that are:

Student Answer:

 spinning.

 moving in a straight line.

 launching into orbit.

 exploding.

 stationary.

Question 7.

Question :

Which of the following is most likely to happen to an astronaut during liftoff?

Student Answer:

 Bones and muscles collapse.

 Nerve damage occurs.

 Body fluids are replenished.

 Blood is drained from the brain.

 Old wounds heal miraculously.

Question 8.

Question :

Galileo's work demonstrated that the distance covered by an accelerating object depends on the square of the:

Student Answer:

 mass.

 gravitational constant.

 acceleration.

 travel time.

 final velocity.

Question 9.

Question :

Why would it be important to ancient people to be able to predict the day of a full moon?

Student Answer:

 They would know when they could continue to work at night.

 They would know when they could see the stars in the sky more clearly.

 They would know what season is coming next.

 They would know how to construct an accurate calendar.

 They would be able to predict the rising and falling tides.

Question 10.

Question :

"Eighty kilometers per hour toward the northeast" is a statement about:

Student Answer:

 acceleration.

 uniform motion.

 velocity.

 speed.

 rate.