Understanding Dimensions and Relativity

What is a one-dimensional object characterized by?

• Having no measurable size or volume

• Having only height

• Having length, width, and height

• Having length and width

What additional dimension is added to our three-dimensional universe to make it four-dimensional?

• Mass

• Gravity

• Energy

• Time

What is necessary for the expansion of a light circle in space?

• Mass

• Time

• Energy

• Gravity

In a future light cone, what is the maximum angle with respect to time?

• 90 degrees

• 60 degrees

• 30 degrees

• 45 degrees

How does the position of an object vary according to different observers?

• It remains the same for all observers

• It varies based on the observer's perspective

• It changes only if the object moves

• It is fixed in space

What happens to the perception of speed when an object is in constant motion?

• It feels faster

• It feels like no motion

• It feels slower

• It feels like acceleration

What does a space-time diagram consist of?

• A space axis and a mass axis

• A mass axis and an energy axis

• A time axis and a gravity axis

• A space axis and a time axis

What is the speed of light in a vacuum?

• 450,000 km/s

• 300,000 km/s

• 600,000 km/s

• 150,000 km/s

What transformation explains the stretching of space and time?

• Maxwell transformation

• Newton transformation

• Einstein transformation

• Lorentz transformation

What remains constant for all observers, regardless of their motion?

• Gravity

• Energy

• Mass

• Speed of light