Sun and Stars
Star A and Star B give off the same amount of light. Nancy observes that Star A looks brighter than Star B. Which of the following explanations best explains why Nancy sees Star A as brighter?
A. Star A is larger than Star B.
B. Star A is cooler than Star B.
C. Star A is closer to Earth than Star B.
D. Star A is farther from Earth than Star B.
C. Star A is closer to Earth than Star B.
The sun is at the center of our solar system. It is a bright ball of hot gases. During the day, the sun appears much larger in the sky than the other stars do at night. What causes the sun to look so much bigger than other stars?
A. The sun is much closer to Earth than other stars.
B. Stars become larger during the day than they do at night.
C. The gases in the sun burn hotter than those of other stars.
D. Stars give off more light during the day than they do at night.
A. The sun is much closer to Earth than other stars.
Some objects in space produce their own light while other objects only reflect light. Which of the following objects produces light energy?
A. asteroid
B. planet
C. moon
D. sun
D. sun
Desiree is learning that gravity can be overcome. Which of the following examples demonstrates overcoming gravity?
A. a human standing on the ground
B. leaves hanging from a branch
C. an orange falling from a tree
D. water dripping from the tap
B. leaves hanging from a branch
Patty notices that when she looks at the stars at night, some appear to be brighter than other stars. Which three factors affect how bright a star appears to an observer on Earth?
A. the star's movement, size, and temperature
B. the star's size, gravity, and distance from Earth
C. the star's size, temperature, and distance from Earth
D. the star's movement, distance from Earth, and gravity
C. the star's size, temperature, and distance from Earth
The sun is a star. Which of the following statements about the sun is NOT true?
A. The sun emits energy that can be observed on Earth.
B. The sun is the star with the shortest distance from Earth.
C. The sun is the brightest star compared to all the other stars.
D. The sun is a medium-size star compared to all the other stars.
C. The sun is the brightest star compared to all the other stars.
A compost pile is in the shade in the morning and then in direct sunlight in the afternoon.
How will the time of day most likely affect the temperature of the compost pile?
A. The thermometer will measure the temperature better in the afternoon.
B. The thermometer will measure the temperature better in the morning.
C. The amount of sunlight decreases the temperature in the afternoon.
D. The amount of sunlight increases the temperature in the afternoon.
D. The amount of sunlight increases the temperature in the afternoon.
Alexandria goes grocery shopping with her mother. She pulls an apple from the bottom of the pile so that all the apples fall to the ground.
What force brings all the apples down?
A. gravity pulling on the ground
B. gravity pulling on the top apple
C. gravity pulling on each of the apples
D. gravity pulling on the first apple out of the bag
C. gravity pulling on each of the apples
The sun is a star. Which of the following statements about the sun is NOT true?
A. The sun emits energy that can be observed on Earth.
B. The sun is the star with the shortest distance from Earth.
C. The sun is the brightest star compared to all the other stars.
D. The sun is a medium-size star compared to all the other stars.
D. The sun is a medium-size star compared to all the other stars.
Which of the following is true of the sun?
A. The sun is the closest star to Earth.
B. The sun is the largest star in the Milky Way.
C. The sun is the largest planet in our Solar System.
D. The sun is an example of a galaxy that gives off light energy.
A. The sun is the closest star to Earth.
How is the Sun different from other objects in our Solar System?
A. It has gravity.
B. It rotates on its axis.
C. It produces its own light energy.
D. It has other objects revolving around it
C. It produces its own light energy.
Phillip’s dog enjoys catching a stick. The path curves up then back down when he throws the stick.
Why does the path curve?
A. Gravity forces the stick up and then down.
B. Phillip forces the stick up and gravity pulls the stick down.
C. The dog pushes the stick up and Philip pulls the stick down.
D. The air pushes the stick up and the dog pulls down on the stick.
B. Phillip forces the stick up and gravity pulls the stick down.
Heidi is using a telescope to look at the stars on a clear night. She observes that she can see many more stars in the same part of the sky when she looks through the telescope than when she looks with just her eyes. Why can Heidi see more stars with a telescope?
A. The telescope takes in less light than her eyes.
B. The telescope causes the stars to give off more light.
C. The telescope lets her see through the clouds that block the light.
D. The telescope will magnify the light of the stars that she cannot usually see
D. The telescope will magnify the light of the stars that she cannot usually see
Mariah is describing the way the Sun looks compared to other stars. Which words would be the best to use?
A. largest and brightest
B. largest and dimmest
C. smallest and dimmest
D. smallest and brightest
A. largest and brightest
Ms. Nesbitt asks her class to identify two types of energy that the Sun gives off. Which types of energy should the class identify?
A. light energy and heat energy
B. wind energy and heat energy
C. light energy and electrical energy
D. wind energy and electrical energy
A. light energy and heat energy
Jimmy enjoys playing outfielder for a community baseball league. Which of the following actions in a baseball game does not overcome gravity?
A. hitting a baseball
B. catching a baseball
C. throwing a baseball
D. dropping a baseball
D. dropping a baseball
Belle is looking at the stars in the night sky without any tools. How would the stars appear if she used a telescope?
A. closer and brighter
B. closer and dimmer
C. farther away and dimmer
D. farther away and brighter
A. closer and brighter
During the daytime, the desert air temperature can be very hot. At night, the air temperature is much cooler What most likely causes the difference in day and nighttime temperatures in a desert?
A. The sun gives off more heat energy during the day than at night.
B. Winds blow and take away any heat energy the desert has at night.
C. Any heat stored in the sand during the day will heat the desert at night.
D. The sun heats the desert during the day but the sun is not shining at night.
D. The sun heats the desert during the day but the sun is not shining at night.
Students go outside to read on a sunny day. Some students sit under a shady tree and some sit in the Sun. After a little while, the students in the Sun moved to sit under the tree. Which most likely explains why the students moved?
A. The Sun did not give off enough light energy.
B. The Sun did not give off enough heat energy.
C. The Sun gave off too much heat energy.
D. The Sun gave off too much wind energy.
C. The Sun gave off too much heat energy.