8th grade 1st Semester test

Front

What should you do if you spill a chemical in the lab?

Back

Report it to the teacher immediately.

Front

What is the term for the speed of an object in a particular direction?

Back

Velocity.

Front

Which of the following is NOT a step in the scientific method?

Back

State a theory.

Front

Which of the following is a unit of force?

Back

Newton.

Front

What is the role of a hypothesis in the scientific method?

Back

To offer a testable explanation.

Front

What is the scientific method?

Back

A systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.

Front

What is momentum?

Back

The product of an object's mass and its velocity.

Front

What is acceleration?

Back

The rate of change of velocity of an object.

Front

What is a controlled experiment?

Back

An experiment where only one variable is changed at a time to isolate the effects of that variable.