PHYSICAL SCIENCE FINAL EXAM

The size of the negative charge of an electron is exactly the same as the size of the positive charge on a proton. What is the overall charge of the helium atom shown in the diagram?

• Neutral

• Positive

• Negative

Tags

NGSS.MS-PS1-1

The Electric Force is strongest when charges are...

• far from each other

• close together

• the electric force is constant everywhere

Tags

NGSS.HS-PS2-4

What option best describes this field?

• A weak electric field generated by two positive charges. They would attract each other.

• A strong electric field generated by two opposite charges. They would repel each other.

• A weak electric field generated by two positive charges. They would repel each other.

• A strong electric field generated by two opposite charges. They would attract each other.

Tags

NGSS.MS-PS2-3

In which direction will the electric field deflect the electron?

• into the page

• Out of the page

• to the right

• to the left

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which of the following is not a good conductor of electricity?

• copper

• silver

• Glass

• aluminum

Two identical conducting spheres have charge of -13μC and +5μC. What will be the charges of the spheres if they are touched to each other and separated?

• +8 μC

• -4 μC

• -8 μC

• +4 μC

Tags

NGSS.HS-PS2-4

An insulator can be charged by rubbing to another insulator. What type of charging is this method?

• Charging by friction

• Charging by contact

• Charging by induction

• Polarization

• -2.4 × 10^{-15} N

• -1.1 × 10^{-15} N

• 1.1 × 10^{-15} N

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Indicate whether the following statements are true or false: (True/ False) The unit of work and energy in the SI system is the meter.

• True

• False

Indicate whether the following statements are true or false: Kinetic energy is proportional to the square of the velocity of an object.

• True

• False

Tags

NGSS.MS-PS3-1