You use a lever to lift a heavy tree branch You apply a force of 100 N and the

lever lifts the branch with a force of 350 N What is the mechanical advantage

of the lever?

Which adaptation is not an example of a structural adaptation?

The process in which light bounces back from and object at the same angle and intensity as it is received by the object is called

Name two finding that have emerged from experiment done in space

The presence of which magnetic feature best explains why a magnet can act at a distance on other magnets or on objects containing certain metals?

When planning a workout for muscular endurance, you'll need fewer workouts to reach your goal if you do compound exercises. a. True b. False

Students asked to measure the temperature of a reaction beaker recorded the following temperatures. 103.7°C, 108.4°C, 105.8°C, 104.6°C The actual temperature is 105.1°C. Which measurement is the most precise

Two atoms that are isotopes of one another must have a different number of what? electrons neutrons protons all particles

How can you use the newton's second law to find force?

Define and describe a mixture using examples.

Which have a positive charge? neutrons atoms protons electrons