Select the correct answer.

In which research method does a researcher change the value of one variable to determine how the change affects another variable?

A.

experiment

observational research

C. survey

D. case study

When you are watching TV, what is the main form of energy being used? Question 14 options: Nuclear Chemical Mechanical Electrical

Analyzing Forces Using Free-Body Diagrams 1. Imagine two books sitting at rest on top of each other on a table. The top book has a mass of 2 kg, the book under the top book has a mass of 3 kg, and the table has a mass of 20 kg.

What do radio waves and microwaves have in common? A. Both have shorter wavelengths than visible light. B. Both are located to the right of visible lights on the spectrum. C. Both have higher frequencies than visible light. D.

Two cars each have a mass of 1050 kg. If the gravitational force between them is 2.27 x 10-7N, how far apart are they? G = 6.67 x 10-11 N. (m/kg) 2

Which of following statements are consistent with the Kinetic Molecular Theory? a. Gas particles collide with each other and surfaces without losing any energy. b. Gases have a low density because there is so much empty space between the particles.

Which of the following instrument would you prefer to measure the length of table 1 vernier calliper 2screw gage 3 microscope 4meter rod

How has light been described? As a force and a wave only as a particle only as a force as a particle and a wave only as a wave

What is the formula for momentum?

In which of the following situations is an object not accelerating? A. An airplane changes course at a constant speed. B. A water-skier gains speed in a straight line as she stands up. C. A man walks in a straight line without changing his speed. D.

College entrance requirement can include all of the following except