Name 4 extensive properties

Two ants started to crawl towards each other at the same time from two different spots. One ant crawled at a speed of 23 cm/min and another ant crawled at a speed of 19 cm/min.

Mechanical advantage worksheet

The pH electrode is in the solution where the pH is measured and connected to the pH meter which has a readout. It takes one kind of signal and converts it to another type of signal.

The celestial sphere actually does exist. True False

The bending of waves around the edge of a barrier is known as a. reflection. b. refraction. c. diffraction. d. interference.

Two iron rods are placed horizontally, touching end-to-end. One end of one rod is heated. After some time, the other rod also feels warm to touch.

Which part of the motor is responsible for reversing the flow of current?

In a generator, as the magnet spins, opposite poles of the magnet push the electrons in opposite directions. This back-and-forth movement of electrons is called what? A) revolutions per minute B) direct current C) alternating current.

A train travels at a speed of 30 miles/hour and traveled a distance of 240 miles. How long did it take the train to complete its journey?

What is the mass number of a potassium atom that has 20 neutrons