According to Einstein’s theory of special relativity, what happens to time for an object moving extremely fast relative to an observer?

What would happen to your weight if you traveled from Earth to the Moon?

Why can a person safely remain inside a car during a lightning strike, provided they are not touching conductive parts connected to the outside?

Why can astronauts aboard the International Space Station appear weightless even though Earth’s gravity is still pulling on them?

If you drop a bowling ball and a tennis ball at the same time in a vacuum, what happens?

Why does a metal spoon feel colder than a wooden spoon in the same room, even when both are at the same temperature?

Which everyday phenomenon is most directly caused by the conversion of electrical energy into light and heat when a spark jumps between two objects?

Which of these can travel through the vacuum of outer space without needing a material medium?