Does a beam of light 'fall' if it is moving through a gravitational field?

• Yes

• No

Tags

NGSS.HS-PS2-4

NGSS.HS-PS4-3

What is gravitational lensing?

• slowing down of time around a black hole

• light bending around a massive object

• light moving in a straight line around a massive object

• light bending as it goes from one medium to another

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NGSS.HS-PS2-4

Which two situations would feel exactly the same?

• Accelerating upward on an elevator on Earth; Being at rest in the middle of outer space

• At rest on the surface of the Earth; in orbit around the Earth on the Space Station

• Free Falling elevator on Earth; in orbit around the Earth on the Space Station

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NGSS.MS-PS2-4

If you wanted to experience an inertial frame, you should

• Sit still. I'm already in one.

• Accelerate upwards at 9.8 m/s/s

• Travel on Earth at constant velocity

• Go skydiving

Which of the following BEST describes time dilation?

• The difference in the speed interval between two events as perceived by an observer under a stationary frame.

• The difference in the distance interval between two events as perceived by an observer under a stationary frame.

• The difference in the time interval between two events as perceived by an observer under a stationary frame.

• The difference in the acceleration of two events as perceived by an observer under a stationary frame.

Which is true about time according to general relativity?

• Time slows down with gravity.

• Time accelerates with gravity.

• Time is pulled down by gravity.

• Time can't be changed by gravity.

He was the one to first use the general relativity in predicting that a sufficiently massive body can deform space-time and that lead to his idea of the existence of black holes.

• Karl Schwarzschild

• Albert Einstein

• Thomas Young

• Max Planck

What force is explained by general relativity?

• Weak nuclear force

• Electromagnetic force

• Strong nuclear force

• Gravitational force

Tags

NGSS.HS-PS2-4

Which of the following is NOT considered as the evidence of General Theory of Relativity?

• Orbit of Mercury

• Orbit of the Earth

• Bending of light

• Black holes

Which of the following BEST describes relativity of simultaneity?

• Two events occurring simultaneously in one reference frame are simultaneous in another frame.

• Two events occurring simultaneously in one reference frame may not necessarily be simultaneous in another frame.

• Two events occurring simultaneously in one reference frame is always simultaneous in another frame.

• Two events occurring simultaneously in different reference frame are always simultaneous to the observer's reference frame.