Cheney 6th Grade Science Bowl (Test #1)

Front

What forces are acting on an object at Position B in a diagram?

Back

Gravity and force applied by the string.

Front

What direction does friction act in relation to motion?

Back

Opposite to the direction of the motion.

Front

Is rusting of a car a physical or chemical change?

Back

Chemical.

Front

What does an object at rest do according to Newton's First Law?

Back

Stays at rest.

Front

What are horizontal rows on the periodic table called?

Back

Periods.

Front

What is the definition of gravity?

Back

A force that attracts two bodies towards each other.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance, while a chemical change alters its chemical composition.

Front

What is inertia?

Back

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

Front

What is the formula for calculating force?

Back

Force = mass × acceleration (F = ma).

Front

What is the role of a catalyst in a chemical reaction?

Back

A catalyst speeds up a chemical reaction without being consumed.