Which of these houses fans and a power supply

What is the pH of Urine ?

In which material does sound travel the fastest?

In gymnastics, which event is performed on a large floor mat?

Which physical property is considered dimensionless?

Which physical property causes raindrops to form spherical shapes?

What conditions must be met for stationary waves to form?

Einstein was awarded Nobel Prize for –

The device used for locating submerged objects under sea is –

What characteristic makes metals good conductors of electricity?

If an object starts moving and if there is no friction at all, what happens?