How would Al explain the fact that you are illuminated by the green and red lights at the same time given that he saw the green light flash before the red light?
What does Al say about the lights as they illuminate you? A. The green light illuminates you at the same time as the red light because although the green light flashes first, you are traveling away from it.
Which of the following statements best describes what is relative in the theory of relativity?
Which of the following statements best describes what is "relative" in the theory of relativity? The theory says that truth can never be established in any absolute sense. The theory says that the speed of light is relative and depends on who is measuring it.
Which of the following must be true of a person who shares the same reference frame as you?
Which of the following must be true of a person who shares the same reference frame as you? The person must not be moving relative to you.
Which of the following is not a prediction made by the theory of relativity?
Which of the following is not a prediction made by the theory of relativity? Observers in different reference frames may disagree about the basic laws of nature. they are not moving relative to each other.
What does Jackie say about the lights as they illuminate you?
What does Jackie say about the lights as they illuminate you? The green light illuminates you at the same time as the red light because although the green light flashes first, you are traveling away from it. You just studied 3 terms!
What two main obstacles prevent us from traveling today throughout the galaxy at relativistic speeds?
What two main obstacles prevent us from traveling today throughout the galaxy at relativistic speeds? The large quantity of energy and radiation shielding.
What is special about the special theory of relativity quizlet?
It is special because it does not include the effects of gravity. Relativity is used because one of the key ideas of the theory is that all measurements are made relative to an observer.
What can be said about the general theory of relativity?
The general theory of relativity (or general relativity for short) is a major building block of modern physics. It explains gravity based on the way space can 'curve', or, to put it more accurately, it associates the force of gravity with the changing geometry of space-time.
What provides the strongest evidence that everyone always measures the same speed of light?
The person must not be moving relative to you. What provides the strongest evidence that everyone always measures the same speed of light? The absoluteness of the speed of light means you could never keep up with the light coming from you and your rocket.
How could you determine whether your spaceship is at rest or moving at constant velocity?
If it's running slow, then the ship is moving. 3) by measuring the lengths of objects in the spaceship. If they are shorter, then the ship is moving.
Which of the following have been used to test the predictions of Einstein’s theory of general relativity?
Gravitational lensing Astronomers using the Hubble Space Telescope and the Very Large Telescope have made precise tests of general relativity on galactic scales.
Why do the predicted consequences of the special theory of relativity seem so strange to most of us?
Why do the predicted consequences of the special theory of relativity seem so strange to most of us? Because they are obvious only at speeds that we never experience in our daily lives.
Which feature of film lighting refers to the intensity of illumination?
Quality refers to the intensity of the light. For example, hard or soft light. Source refers to the role of the lighting. For example, key light or fill light.
Why can’t we reach the speed of light?
Nothing can travel faster than 300,000 kilometers per second (186,000 miles per second). Only massless particles, including photons, which make up light, can travel at that speed. It's impossible to accelerate any material object up to the speed of light because it would take an infinite amount of energy to do so.
What two main obstacles prevent us from traveling today throughout the galaxy at relativistic speeds quizlet?
What two main obstacles prevent us from traveling today throughout the galaxy at relativistic speeds? The large quantity of energy and radiation shielding.
What is special about the special theory of relativity?
Special relativity is an explanation of how speed affects mass, time and space. The theory includes a way for the speed of light to define the relationship between energy and matter — small amounts of mass (m) can be interchangeable with enormous amounts of energy (E), as defined by the classic equation E = mc^2.
What is the theory of relativity quizlet?
The special theory of relativity states that all motion is relative. For objects moving at a constant velocity with respect to each other. Everyone (every reference frame) can claim to be stationary. Ability to distinguish between motion & non-motion.
What is Einstein’s theory of relativity in simple terms?
What is general relativity? Essentially, it's a theory of gravity. The basic idea is that instead of being an invisible force that attracts objects to one another, gravity is a curving or warping of space. The more massive an object, the more it warps the space around it.
Which of Newton’s laws of motion explains the relationship of forces between the Earth and the moon?
By invoking his law of inertia (bodies not acted upon by a force move at constant speed in a straight line), Newton concluded that a force exerted by Earth on the Moon is needed to keep it in a circular motion about Earth rather than moving in a straight line.
What provides the strongest evidence that everyone always measures the same speed of light quizlet?
The person must not be moving relative to you. What provides the strongest evidence that everyone always measures the same speed of light? The absoluteness of the speed of light means you could never keep up with the light coming from you and your rocket.
Why do we think the speed of light is constant?
Since light is an electromagnetic wave, that means that the speed of light is equal to the speed of the electromagnetic waves. ϵ0 and μ0 are properties of the vacuum and are constants, so c will also be a constant.
How does the observer at rest on Earth see the length of a spacecraft moving at nearly the speed of light?
One of the peculiar aspects of Einstein's theory of special relativity is that the length of objects moving at relativistic speeds undergoes a contraction along the dimension of motion. An observer at rest (relative to the moving object) would observe the moving object to be shorter in length.
When traveling at speeds close to the speed of light time will noticeably?
The closer the speed of an objects approaches to the speed of light, the more warped lengths and time intervals become. , so that the effect increases exponentially as the object's velocity v approaches the speed of light c.
Which one of the following is not a famous test or prediction of Einstein’s general theory of relativity?
Answer and Explanation: (a) Different observers can disagree about the fundamental structure of spacetime. This is not a prediction of the theory of relativity, since the…
Why is it so difficult to test the predictions of the theory of general relativity describe two tests of the theory?
Why is it so difficult to test the predictions of the theory of general relativity? Describe two tests of the theory. It is difficult to test because it's effects on earth and in the solar system – the places where we can most easily perform tests- are very small.
Can an object travel at the speed of light Why or why not?
Nothing can travel faster than 300,000 kilometers per second (186,000 miles per second). Only massless particles, including photons, which make up light, can travel at that speed. It's impossible to accelerate any material object up to the speed of light because it would take an infinite amount of energy to do so.
What is the strange consequence of special relativity?
Special relativity had strange and unexpected consequences such as length of objects vary when measured in moving reference frames, mass cannot be accelerated to the speed of light and that time and space are not independent.
What is light intensity in film?
Intensity refers to a light's brightness and output and is generally referred to in watts, which vary depending on the bulb/fixture. That's it – pretty easy to understand!
How does lighting affect a film?
Lighting can highly affect the mood of a film, just like it can affect photography. It can help the audience understand what they are supposed to be feeling. And it can help us see a character in a different light – literally. Alternatively, bad lighting can ruin the emotion of a movie.
Is it impossible to travel at light speed?
So will it ever be possible for us to travel at light speed? Based on our current understanding of physics and the limits of the natural world, the answer, sadly, is no.