8th Grade SOL Practice 2

Newton's second law of motion is represented by - (a)  

• Force = Mass x Acceleration
• Work = Force x Distance
• Density = Mass/Volume
• Speed = Distance/Time

What tells you on the periodic table how many energy orbitals or shells an atom has? (a)  

• Period
• Group
• Family
• Atomic Number

What on the periodic table tells you what elements have the same physical characteristics? (a)  

• Period
• Group/Family
• Atomic Number
• Atomic Mass

What on the periodic table tells you the number of valence electrons? (a)  

• Period
• Group/Family
• Atomic Number
• Atomic Mass

Which represents a chemical change? (a)  

• A campfire
• boiling water
• a phase change
• ripping paper

Which instrument will help you get the volume of a substance? (a)  

• A graduated cylinder
• A triple beam balance
• A spring scale
• A ruler

The space an object takes up and is measured by taking the length times width times height or the displacement of water is called the - (a)  

• weight
• mass
• volume
• leng

Which type of energy is produced by the splitting of an atom, a larger atom is split into two new elements (Fission)? (a)  

• Solar
• Chemical
• Nuclear
• Electrical

If the frequency of a sound wave is increased, then what will also increase?  (a)  

• Pitch
• Amplitude
• Wave
• Sound

the electric company reads the meter outside of your house.  What unit is used to measure electrical energy? (a)  

• killowatts per hour
• Newton-meter
• millivolt
• ohm-meter