Physics Middle School

Apparent brightness depends on which two properties?
A. Distance and temperature
B. Luminosity and distance
C. Luminosity and temperature
D. Luminosity and size

Answers

Answer 1

Answer:

I believe it is luminosity and distance

Explanation:

So B

Answer 2
Brightness-Luminosity Relationship:

At a particular Luminosity, the more distant an object is, the fainter its apparent brightness becomes as the square of the distance
So the correct ans is B

Related Questions


1. In Physics, we distinguish between wave motion and particle motion Wave motion
refers to the movement of a wave-like pattern from one location on the medium to
another. When you view a water wave moving along the surface of water, you are
observing wave motion. There is a very obvious movement of a collection of crests and
troughs along the water surface. In the Simple Wave Simulator, there is a collection of
crests and troughs moving through a rope this is wave motion. But there are also three
points on the rope that are colored red. When you observe the motion of these points.
you are observing particle motion - the motion of particles of the rope. Describe the
motion of these particles.​

Answers

Answer:

Look at explanation

Explanation:

One of the easier ways to define wave motion is the continuous movement of particles. When we have a rope for example and whip it, the first particle bumps into the second one then into the third and so on and so forth until the end of the rope. Particles can only move up and down or left and right and the vibration caused by each particle is what sets off the wave motion.

How does gravity affect the motions of Earth and the Moon?

Answers

Answer:

The Sun's gravitational pull keeps our planet orbiting the Sun. The motion of the Moon is affected by the gravity of the Sun and Earth. Moon's gravity pulls on the Earth and makes the tides rise and fall.

Answer:

Gravity is making the Earth go around the Sun, it's also making the Moon go around the Earth, and somehow (I don't know how) the Moon's gravity messes with the water on Earth.

Explanation:

Choose all the answers that apply.

Stars:

usually seem bright if they are close to Earth
are terrestrial bodies
use their own matter to create nuclear reactions
generate their own energy
are classified primarily by temperature

Answers

Answer:

use their own matter to create nuclear reactions

generate their own energy

are classified primarily by temperature

usually seem bright if they are close to Earth

Explanation:

The answers that apply for the stars are 1,2,4 and 5. Stars usually seem bright if they are close to Earth.

What is a star?

A star is a heavenly body made up of a brilliant spheroid of plasma held together by gravity. The Sun is the closest star to Earth.

Many additional stars may be seen with the normal eye at night, but due to their great distance from Earth, they appear as stationary points of light in the sky.

The answers that apply for the stars are as follows;

1. Usually seem bright if they are close to Earth.

2. Stars are terrestrial bodies.

4. They generate their own energy.

5. Stars are classified primarily by temperature.

The answers that apply for the stars are 1,2,4 and 5.

To learn more about the stars, refer to the link;

https://brainly.com/question/24493066

#SPJ2

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