Question
Jackie, Bella, and Sam are discussing gravity. Bella says that they would weigh less on the moon than on the Earth because the moon exerts less gravity than the Earth. Sam says that their mass would be the same on the moon as it is on Earth. Jackie says that her weight and mass would stay the same if she went to the moon.
Who is correct?
(1 point)
Responses
Sam is correct because their mass would be the same on the moon as it is on Earth.
Sam is correct because their mass would be the same on the moon as it is on Earth.
Bella is correct because the moon exerts less gravity than the Earth.
Bella is correct because the moon exerts less gravity than the Earth.
Sam and Bella are BOTH correct because the moon exerts less gravity than the Earth AND their mass would be the same on the moon as it is on Earth.
Sam and Bella are BOTH correct because the moon exerts less gravity than the Earth AND their mass would be the same on the moon as it is on Earth.
Jackie is correct because weight and mass do not change based on the force of gravity.
Jackie is correct because weight and mass do not change based on the force of gravity.
Jackie is correct because weight and mass do not change based on the force of gravity.
To determine who is correct, let's break down the statements made by Bella, Sam, and Jackie:
Bella says that they would weigh less on the moon than on Earth because the moon exerts less gravity than the Earth.
Sam says that their mass would be the same on the moon as it is on Earth.
Jackie says that her weight and mass would stay the same if she went to the moon.
To understand the concept here, we need to differentiate between weight and mass. Mass is the amount of matter in an object and remains the same regardless of the location. Weight is the force exerted on an object due to gravity and can vary depending on the strength of the gravitational pull.
Bella's statement about weighing less on the moon is correct. The moon exerts less gravity than the Earth, so the force of gravity pulling on an object on the moon is weaker. As a result, a person would weigh less on the moon compared to Earth.
Sam's statement about the mass being the same on the moon as it is on Earth is also correct. Mass is an intrinsic property of an object and does not change based on the location. So, if someone has a certain mass on Earth, they will have the same mass on the moon.
Jackie's statement about weight and mass staying the same on the moon is incorrect. As mentioned earlier, weight is dependent on the force of gravity. Therefore, going to the moon would result in a different weight due to the weaker gravitational pull.
So, the correct answer is: Sam is correct because their mass would be the same on the moon as it is on Earth. Bella is also correct because the moon exerts less gravity than the Earth, leading to a person weighing less on the moon.
A person states that the gravitational force between two objects depends upon the mass of the objects and the distance between them. Which argument best supports the person’s statement?(1 point)
Responses
If the distance between two objects decreases, the gravitational force between the objects will not change.
If the distance between two objects decreases, the gravitational force between the objects will not change.
If the distance between two objects increases, the gravitational force between the objects will decrease.
If the distance between two objects increases, the gravitational force between the objects will decrease.
If the distance between two objects increases, the gravitational force between the objects will increase.
If the distance between two objects increases, the gravitational force between the objects will increase.
If the distance between two objects decreases, the gravitational force between the objects will decrease.
If the distance between two objects increases, the gravitational force between the objects will decrease.
When an astronaut is on a spacewalk and is moving away from the space shuttle, how does the force of gravity between the two objects change?(1 point)
Responses
it goes down
it goes down
it goes up for the astronaut and goes down for the space shuttle
it goes up for the astronaut and goes down for the space shuttle
it goes down for the astronaut and goes up for the space shuttle
it goes down for the astronaut and goes up for the space shuttle
it goes up
The force of gravity between the astronaut and the space shuttle decreases as the astronaut moves away from the space shuttle.
How does the gravitational force between Earth and the Moon change when the distance between the two objects doubles but mass doesn’t change?(1 point)
Responses
The gravitational force between Earth and the Moon would go down by a proportional amount.
The gravitational force between Earth and the Moon would go down by a proportional amount.
The gravitational force between Earth and the Moon would stay the same.
The gravitational force between Earth and the Moon would stay the same.
The gravitational force between Earth and the Moon would completely disappear.
The gravitational force between Earth and the Moon would completely disappear.
The gravitational force between Earth and the Moon would goes up by a proportional amount.