Sodium and potassium are positively charged ions called cations, and chloride and phosphate form negatively charged ions called anions.

Select one:

True

False

In order to increase the rate of acceleration of a car, you should apply more force to it. true or false

Mr. Stephenson drives his car from Dallas to Town X, a distance of 437 km. The trip takes 7.27 hours. What is the average speed of this trip in meters per second (m/s) ?

A tractor pulls on a tree for 3 minutes with a force of 100 pounds. The tree does not move. How much work is done? 1000 ft-lbs 3000 ft-lbs unknown zero

When two or more atoms combine to make a molecule, they form a ...

Which of the following terms describes the streak of light created when a space object enters Earth's atmosphere? Impact crater Meteor Meteorite Meteoroid

Which are the most common producers in aquatic ecosystems? a - bacteria b - algae c - fish d - plants

You push a piano 5 meters across the floor with a force of 400 n. how much work have you done?

Monochromatic electromagnetic radiation illuminates an area of a surface. The electric and magnetic fields of the waves are then doubled in magnitude.

The measure of the force of gravity on an object, expressed as mass of the object times acceleration due to gravity is called

Which of the following jobs does not require good swimming ability