Science Prac. Test sec. 1

Who first called the mysterious force produced by rubbing materials the “electric force”?

• William Gilbert

• Isaac Newton

• Benjamin Franklin

• Aristotle

• Marie Curie

What is the meaning of the Greek word “atom”?

• invisible

• indivisible

• smallest piece

• element

• matter

According to ancient Western thought, which of the following was NOT one of the four basic elements?

• Hydrogen

• Fire

• Water

• Air

• Earth

What do we now know about the elements on the Periodic Table?

• They are made of even smaller pieces.

• They are the smallest possible particles in the universe.

• They are made only of earth, air, fire, and water.

• They are infinitely divisible.

• They are indivisible and fundamental.

Tags

NGSS.MS-PS1-1

What did some ancient philosophers believe about dividing matter?

• that you could keep cutting it into smaller pieces forever

• that everything was made only of hydrogen and oxygen

• that atoms were made of fire and water

• that matter could not be divided at all

• that all matter was made of feathers and paper

Benjamin Franklin's experiments with the key and thunderstorm demonstrated which of the following?

• that thunder is louder than lightning

• that lightning is caused by protons

• that static electricity can create rain

• that lightning is an electrical phenomenon

• that electricity cannot travel through metal

Which particle plays no role in electricity because it has no electric charge?

• proton

• electron

• neutron

• photon

• ion

Which type of charge does an electron have?

• negative

• positive

• neutral

• variable

• zero

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

According to Newton's third law of motion, what happens when one object exerts a force on another?

• Only the smaller object moves.

• The force disappears.

• The second object exerts an equal force back on the first object.

• The force increases over time.

• The objects combine into one.

Tags

NGSS.MS-PS2-1

What is the mass of a typical adult human?

• 60 to 70 kg

• 10 to 20 kg

• 100 to 120 kg

• 30 to 40 kg

• 150 to 160 kg