Which object has the most kinetic energy? a bus a car a plane a bicycle

Which shows the correct steps in the formation of an ionic bond between these atoms?

When heat energy is used, A. It gets hotter B. It is no longer available to do work C. It becomes light energy D. It is easily recycled

A dolphin emits ultrasound of 100kHz and uses the timings of reflection to determine the position of objects in the water. What is the wavelengths of this ultrasound? Note the speed of sound in water is 1480m/s.

Why is convex lens used in microscope?

Why do we need gravity?

Why are tyres of formula one is different from four wheels drive?

The slope of a velocity versus time graph gives

Which of the following describes subatomic particles? carbon and nitrogen solids, liquids, gases larger than atoms protons, neutrons, and electrons

What is the difference between speed and velocity? A) velocity describes speed with direction. B) there is no difference. C) Velocity describes direction with position. D) Velocity is used in space, while speed is used on earth.

How do you calculate resistance with coulombs, time and J's?