Force
Why does the author use the phrase, "It's the force that keeps us firmly planted on the planet Earth?"
Teacher decides.
Teacher decides.
What is The author uses the word "planted" to show that we don't move off the earth; we are planted like a plant or tree with roots.
What is the connection between gravity and gravitational pull?
Use this sentence:
Gravity is____ while gravitational pull is ____.
Teacher decides.
Teacher decides.
What is Gravity is ___ while gravitational pull is ___.
Why is mass important to understanding gravity?
A. The amount of mass affects the amount of gravitational pull something has.
B. The amount of mass has no affect on gravity.
C. The amount of mass has a affect on the moons.
What is A. The amount of mass affects the amount of gravitational pull something has.
In the last paragraph, which sentence sums up this entire text the best?
Teacher decides.
Teacher decides.
What is "We can't see gravity, but we can see its effects all around us..."
Describe the effects of gravity on Earth's oceans.
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Teacher decides.
What is the moon's gravity pulls on the oceans, but Earth's gravity pulls it back. creating tides.
Why does the author use the phrase, "It's the force" so many times in the paragraph?
Teacher decides.
Teacher decides.
What is the author wanted to make sure that it's understood that gravity is a force.
If you can not see black holes, how do scientists know they are there?
Use this sentence starter:
Scientists can ____.
Teacher decides.
Teacher decides.
What is Scientists can___.
Describe the relationship between gravity and your weight on a scale.
Teacher decides.
Teacher decides.
What is...
The word collision means...
A. having fun during knowledge.
B. running down the street.
C. smashing together; a violent hit between two objects.
What is C. smashing together; a violent hit between two objects.
If you can not see black holes, how do scientists know they are there?
Use this sentence starter:
Scientists can ____.
Teacher decides.
Teacher decides.
What kind of force was not allowing the paper to fall faster than the marble at the beginning of the experiment?
What is air friction.
Why do you think these powerful areas of gravitational pull were named black holes?
Teacher decides.
Teacher Decides
What is Objects fall into them and not even light can escape.
Which would fall faster?
A. One feather
B. One Rock
What is B. One Rock.
Why does the author say scientists "think there was a massive collision" or "the moon may have formed" when talking about how the moon came about?
Teacher decides.
Teacher decides.
What is it happened so long ago that there are no witnesses, so they are using information they gathered to form a theory about what happened.
What is the cause of astronauts staying in place on the moon and not flying back toward Earth?
Teacher decides.
Teacher decides.
What is the gravitational pull of the moon.
What force would pull a ball back down to the ground?
A. gravity
B. mass
C. magic
What does the beach look like at low tide?
A. The waves do not come up as far.
B. The waves come up higher on the beach.
C. The waves stay the same.
What is A. The waves do not come up as far.
Yesterday during the experiment which one fell faster? Why?
A. Marble
B. Paper
What is A. Marble.
The word gravity means...
A. The force or pull created by the height of objects in the universe toward each other
B. The force or pull created by the mass of objects in the universe toward each other.
C. The force or pull created by the friction of objects in the universe toward each other.
What is B. The force or pull created by the mass of objects in the universe toward each other.
What are the two factors that keep the planets in their orbits around the sun?
Teacher decides.
Teacher decides.
What is the planets' speed as they circle the sun and the sun's gravitational pull.
What did air friction do to the piece of paper yesterday?
Teacher Decides
Teacher decides
What is air friction caused the paper to fall more slowly than the marble.
What does the beach look like at high tide?
A. The waves do not come up as far.
B. The waves come up higher on the beach.
C. The waves stay the same.
What is B. The waves come up higher on the beach.
Which of these weighs more and has more mass?
A. 1,000 pounds of feathers
B. 1,000 pounds of rocks
The word force means...
Teacher Decides.
Teacher decides.
What is...
How do you know gravity is real?
Teacher decides.
What is...