2023 2nd Semester Test Review

What law is best described by inertia?

• 1st law
• 2nd law
• 3rd law
• 4th law

Which element is represented by the Bohr Model?

• nickel
• neon
• oxygen
• hydrogen

Tags

NGSS.MS-PS1-1

What is the atomic number of this element?

• 2
• 4
• 6
• 8

Tags

NGSS.MS-PS1-1

Protons have a ____ charge

• postive
• negative
• neutral

Atoms have a ____ charge.

• positive
• negative
• neutral

Tags

NGSS.MS-PS2-3

What will happen when these magnets are brought close together?

• they will attract each other
• they will repel each other
• both magnets will turn to the left
• both magnets will turn to the right

Tags

NGSS.MS-PS2-3

If you cut a magnet if half, what happens to the poles?

• one half gets the north pole, the other half gets the south pole
• both halves get only a north pole
• both halves get only a south pole
• both halves get a north pole and a south pole

some objects that normally aren't magnetic can become magnetized when connected to a circuit. Items that are magnetized this way are called _____.

• electrons
• electromagnets
• electrochromic devices
• permanent magnets

If you wrap more coils around an electromagnet, it will become ___

• brighter
• stronger
• weaker
• invisible

What happens when an electric current flows through a wire?

• the wire begins to spin
• nothing happens
• a field of gravity is created around the wire
• a magnetic field is created around the wire