Question
What information is needed to calculate the gravitational force of an object?(1 point)
Responses
the mass of the object subtracted from the distance between the object and the planet’s core
the mass of the object and the planet’s gravitational acceleration
the mass of the two objects
the distance between the two objects
When interplanetary space travel becomes viable, doctors may suggest to people with arthritis that they vacation on a planet with lower gravitational attraction and do more walking.
The gravitational acceleration on Earth is 9.8 m/s ^2
, while the gravitational acceleration on Mars is 3.7 m/s ^2
. How much less force would the vacationer be applying to their joints when walking on Mars?
(1 point)
Responses
2.6 times less force
6.1 times less force
13.5 times less force
36.26 times less force
Which of the following is true about the relationship between the gravitational force of Earth and the Moon?(1 point)
Responses
The Earth has a greater gravitational attraction than the Moon.
The Moon has a greater gravitational attraction than the Earth.
The Earth has identical gravitational attraction to that of the Moon.
The Earth has no impact on the gravitational attraction of the Moon.
A high school athlete is in the weight room training for wrestling season. He is trying to bench press a bar loaded with 100 kg. How much force must he exert to lift the loaded bar and overcome the force of gravity?
Remember that a= 9.8 m/s ^2
.(1 point)
Responses
109.8 N
10.2 N
9800 N
980 N
A group of extraterrestrial athletes travel from the Moon to Earth to train.
How would the amount of force they exert to move change on Earth?
(1 point)
Responses
The force needed to move on the Earth is less than the force needed to move on the moon.
The force needed would be less, so they would perform at a higher level.
The force would need to be greater, so they would not perform as well.
The force would be the same.
Responses
the mass of the object subtracted from the distance between the object and the planet’s core
the mass of the object and the planet’s gravitational acceleration
the mass of the two objects
the distance between the two objects
When interplanetary space travel becomes viable, doctors may suggest to people with arthritis that they vacation on a planet with lower gravitational attraction and do more walking.
The gravitational acceleration on Earth is 9.8 m/s ^2
, while the gravitational acceleration on Mars is 3.7 m/s ^2
. How much less force would the vacationer be applying to their joints when walking on Mars?
(1 point)
Responses
2.6 times less force
6.1 times less force
13.5 times less force
36.26 times less force
Which of the following is true about the relationship between the gravitational force of Earth and the Moon?(1 point)
Responses
The Earth has a greater gravitational attraction than the Moon.
The Moon has a greater gravitational attraction than the Earth.
The Earth has identical gravitational attraction to that of the Moon.
The Earth has no impact on the gravitational attraction of the Moon.
A high school athlete is in the weight room training for wrestling season. He is trying to bench press a bar loaded with 100 kg. How much force must he exert to lift the loaded bar and overcome the force of gravity?
Remember that a= 9.8 m/s ^2
.(1 point)
Responses
109.8 N
10.2 N
9800 N
980 N
A group of extraterrestrial athletes travel from the Moon to Earth to train.
How would the amount of force they exert to move change on Earth?
(1 point)
Responses
The force needed to move on the Earth is less than the force needed to move on the moon.
The force needed would be less, so they would perform at a higher level.
The force would need to be greater, so they would not perform as well.
The force would be the same.
Answers
Answered by
GPT-4o mini
Here are the answers to your questions based on gravitational force calculations and general physics principles:
1. **What information is needed to calculate the gravitational force of an object?**
- **The mass of the two objects.**
2. **How much less force would the vacationer be applying to their joints when walking on Mars?**
To find this, we can look at the gravitational forces experienced by the individual on Earth versus Mars.
- Force on Earth = mass × gravitational acceleration on Earth = mass × 9.8 m/s²
- Force on Mars = mass × gravitational acceleration on Mars = mass × 3.7 m/s²
The ratio of the forces (Earth/Mars) would tell us how much less force is applied:
\[
\frac{9.8}{3.7} \approx 2.65
\]
Thus, they would apply **2.6 times less force.**
3. **Which of the following is true about the relationship between the gravitational force of Earth and the Moon?**
- **The Earth has a greater gravitational attraction than the Moon.**
4. **How much force must the athlete exert to lift the loaded bar and overcome the force of gravity?**
- To calculate the force:
\[
\text{Force} = \text{mass} \times \text{acceleration} = 100\, \text{kg} \times 9.8\, \text{m/s^2} = 980\, \text{N}
\]
Therefore, the answer is **980 N.**
5. **How would the amount of force they exert to move change on Earth?**
- **The force would need to be greater, so they would not perform as well.** (Because Earth’s gravity is stronger than that of the Moon, they would have to exert more force to move.)
If you need further clarification or additional information, feel free to ask!
1. **What information is needed to calculate the gravitational force of an object?**
- **The mass of the two objects.**
2. **How much less force would the vacationer be applying to their joints when walking on Mars?**
To find this, we can look at the gravitational forces experienced by the individual on Earth versus Mars.
- Force on Earth = mass × gravitational acceleration on Earth = mass × 9.8 m/s²
- Force on Mars = mass × gravitational acceleration on Mars = mass × 3.7 m/s²
The ratio of the forces (Earth/Mars) would tell us how much less force is applied:
\[
\frac{9.8}{3.7} \approx 2.65
\]
Thus, they would apply **2.6 times less force.**
3. **Which of the following is true about the relationship between the gravitational force of Earth and the Moon?**
- **The Earth has a greater gravitational attraction than the Moon.**
4. **How much force must the athlete exert to lift the loaded bar and overcome the force of gravity?**
- To calculate the force:
\[
\text{Force} = \text{mass} \times \text{acceleration} = 100\, \text{kg} \times 9.8\, \text{m/s^2} = 980\, \text{N}
\]
Therefore, the answer is **980 N.**
5. **How would the amount of force they exert to move change on Earth?**
- **The force would need to be greater, so they would not perform as well.** (Because Earth’s gravity is stronger than that of the Moon, they would have to exert more force to move.)
If you need further clarification or additional information, feel free to ask!
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