Answers to Physics Questions

Please can you calculate how much extra fuel will be burned by a motorist during the current World Cup campaign as a...

I've been following the progress of solar panels and hear that they're only about 16% efficient. What's...

If sound and heat are both vibrations, then why isn't sound hot and heat loud?

If you hold your lips closed with your fingers and breathe out as hard as you can, and then release your fingers, you...

Why do some people suffer so badly with static electric shocks? It's particularly bad when I get out of my car.

Do you think we'll ever beat the speed of light?

If you take a two-litre plastic soda bottle and blow across the lid, you get a very low note. If you squeeze the bottle...

When I play my flute, sometimes it gets a really screechy noise. What is it? It only happens when I play medium E...

Is white noise something to do with gravity or the big bang?

What is ultrasound? Is it actually sound?

Why do instruments from different countries not go well together?

Do TV and radio signals travel vertically, and if they do, do they disappear or travel off into space forever? If so,...

I was listening to my radio one night and I noticed that when I turned on my desk light there was a little blip of...

We know that we're living on a nuclear furnace and heat's being made all the time in the core. Is there no...

Why do bubbles of gas form on the sides of the bath or glass while or after you have run the water?

Why is it that when you put something metal in the microwave, you get a firework display, and yet the inside of the...

If you spill some water on the kitchen floor, it's obviously very slippery. Yet when you want to turn the pages...

Was the Star of Bethlehem a real astronomical event?

What's gravity made of?

If our weight is the difference between gravity and the centrifugal force of the Earth's rotation, why are we not...

How is thunder and lightning made, and what causes it?

When you snap a glowstick, what makes it glow?

How's a rainbow made in the sky?

Many years ago I was told that six foot fluorescent strip lights are more efficient and need less energy than tungsten...