Relativity

Who is one of the most influential physicists in the 20th century?

• Karl Schwarzschild

• Albert Einstein

• Isaac Newton

• Max Planck

It Is also known as curving of space-time.

• Black hole

• warping

• Bending

• orbiting

How does special relativity differs from general relativity?

• Special relativity applies only to moving frames while general relativity applies only to stationary frames.

• Special relativity applies only to stationary frames while general relativity applies only to accelerating frames.

• Special relativity applies only to stationary or moving frames while general relativity applies only to accelerating frames.

• Special relativity applies only to accelerating frames while general relativity applies only to stationary or moving frames.

What must be the velocity of an object to escape a black hole?

• less than c

• equal to c

• zero

• greater than c

The special theory of relativity was derived by:

• Galileo

• Newton

• Einstein

• Sitter

Match the following of Special Relativity

• E=mc²

• Time Dilation

• Items look smaller when moving faster

• Simultaneity

• Time slows down for objects moving fast

• Length Contraction

• Relativity, perception of events

• Mass-Energy Equivalence Equation

In time dilation, time is

• fixed

• relative

• constant

• light

The speed of light is <blank> in all frames of reference, regardless of their motion.

• constant

• relative

• changes

• varied

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NGSS.HS-PS4-1

NGSS.HS-PS4-3

Which of the following is true about time when an object approaches the speed of light?

• Time slows down

• Time speeds up

• Time stays the same

• Time will stop

Mark and James are both 16 years old. James became an explorer astronaut and travelled at light speed.

According to time dilation, which of the two will be younger after 7 years?

• Mark

• James

• Both boys will be of the same age

• Both boys will be 7 years old.