8th midterm

The three smaller components that make up atoms are -

• neutrons, protons and ions.

• neutrons, electrons and protons

• protons, ions and electrons.

Which of the following lists the two particles found together inside the nucleus of an atom?

• Protons and neutrons

• Neutrons and electrons

• Electrons and protons

If an atom has six positively charged subatomic particles, which of the following must it also have in order to become a neutral atom?

• 12 protons

• 6 neutrons

• 6 electrons

What is the name for the type of subatomic particle that is electrically neutral and found in the nucleus of an atom?

• Neutron

• Proton

• Ion

A tiny negatively charge subatomic particle outside the nucleus of an atom

• Atom

• Proton

• Electron

• Electrical charge

For an object to remain at rest, which of the following must be true?

• There is no friction.

• The forces on it are balanced.

• The object has no mass.

• Gravity does not act on it.

If an object increases in speed, it must be as a result of unbalanced forces

• True

• False

Which of these is an example of a description of speed?

• An airplane traveled west from New York to Los Angeles.

• An apple fell from the tree and then rolled 1 m north.

• A train traveled east at 200 mph from Albuquerque to Dallas.

• The average Olympic sprinter runs 8 m/s.

Velocity is different than speed because velocity includes what?

• Displacement

• Diagnostics

• Direction

• Distance

Which measurements are necessary for determining both the speed and velocity of a moving object?

• Distance, time, and direction

• Direction, displacement, and distance

• Direction, time, and acceleration