6-8 UIL Science Practice

Front

What is the main difference between scalar and vector measurements?

Back

Vector measurements include a direction.

Front

What system coordinates the metabolic activity of body cells by interacting with the nervous system?

Back

Endocrine system.

Front

What does a symbol indicating 'can burn easily' signify about a substance?

Back

The substance is flammable.

Front

How does metallic character change within a group on the periodic table from bottom to top?

Back

It tends to decrease.

Front

What evidence best supports the Big Bang Theory?

Back

Red & blue shifts of light from stars.

Front

Define speed in terms of measurement.

Back

Speed is a scalar measurement that indicates how fast an object is moving.

Front

Define velocity in terms of measurement.

Back

Velocity is a vector measurement that indicates the speed of an object in a specific direction.

Front

What is the role of the endocrine system in the human body?

Back

It regulates metabolic activity through hormones.

Front

What does the term 'scalar' refer to in physics?

Back

A quantity that has only magnitude and no direction.

Front

What does the term 'vector' refer to in physics?

Back

A quantity that has both magnitude and direction.