Please check my answers:
Why does a brick weigh 1 kilogram. Explain.
-Is it because the matter in the brick is the gravitational pull between the brick and the earth?
When one water drop falls from a facet, and then a few minutes later another drop. How will the drop come out:
My choices are:
greather the other
farther than other
the same as the other
same, bc they don't get greater, and they usually drop in the same place
Hate to be picky. While the mass of the brick may be 1 kg its weight is 9.8 N.
This is because the mass is a property of the brick so no matter where you take it its mass is 1 kg.
The weight, which is a force, is mass x acceleration (m x a) so if the brick is on Earth its weight is
1 kg x 9.8 m s^2 = 9.8 N
But if the brick was on the moon where the value of the acceleration due to gravity is less its weight is less than on Earth. (about 1.6 N).
So it weighs 9.8 N due the gravitatioal pull between the brick and the Earth, but no matter where it is it will have a mass of 1 kg.
Hope this helps.
To check your answers:
1. Why does a brick weigh 1 kilogram?
You are partially correct. The weight of a brick is determined by the gravitational pull between the brick and the Earth. However, the weight itself does not determine the mass of the brick. The mass is a measure of the amount of matter in the brick, while the weight is the force exerted on the brick due to gravity. In most cases, on Earth's surface, the weight and mass of an object appear to be the same since the acceleration due to gravity is usually constant. So, we can say that the weight of a brick on Earth is approximately equal to its mass.
2. When one water drop falls from a faucet, and then a few minutes later another drop, how will the second drop come out?
The correct answer is "the same as the other." Each water drop falling from a faucet is essentially independent of the previous drop. The size and shape of the faucet, as well as the water pressure, remain constant for each drop. Therefore, the subsequent drop will come out in a similar manner as the first drop.