8th Grade Science Review

Front

What is the formula to calculate net force?

Back

Net Force (F) = Mass (m) × Acceleration (a)

Tags

NGSS.MS-PS2-2

Front

What is the mass of the drill in the given problem?

Back

3.5 kilograms

Front

What is the acceleration rate of the drill in the given problem?

Back

4.0 m/s²

Tags

NGSS.MS-PS2-2

Front

What is the net force required to accelerate the drill at 4.0 m/s²?

Back

14 newtons

Tags

NGSS.MS-PS2-2

Front

Why does the sun appear brighter than any other star?

Back

The sun is closer to Earth than any other star.

Front

What is the chemical formula for potassium nitrate?

Back

KNO3

Front

How many total atoms are in one unit of potassium nitrate (KNO3)?

Back

5 atoms (1 Potassium, 1 Nitrogen, 3 Oxygen)

Tags

NGSS.MS-PS1-1

Front

Which element has properties most similar to sulfur (S)?

Back

Selenium (Se)

Front

What determines the reactivity of an element?

Back

Group in the periodic table.

Front

What is the definition of a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Tags

NGSS.MS-PS1-1