Grade 7 | Unit 5 | Lesson 3: Changing Elevation | Practice Problems

What is the final elevation of a bird that starts at 20 m and changes by 16 m?

• 36 m

• 4 m

• -11 m

• 2 m

• -20 m

What is the final elevation of a butterfly that starts at 20 m and changes by -16 m?

• 36 m

• 4 m

• -11 m

• 2 m

• -20 m

What is the final elevation of a diver that starts at 5 m and changes by -16 m?

• 36 m

• 4 m

• -11 m

• 2 m

• -20 m

What is the final elevation of a whale that starts at -9 m and changes by 11 m?

• 36 m

• 4 m

• -11 m

• 2 m

• -20 m

What is the final elevation of a fish that starts at -9 m and changes by -11 m?

• 36 m

• 4 m

• -11 m

• 2 m

• -20 m

Find the overall charge for neon if it has -10 electrons and +10 protons.

• 0

• -2

• +2

Find the overall charge for oxide if it has -10 electrons and +8 protons.

• 0

• -2

• +2

Find the overall charge for copper if it has -27 electrons and +29 protons.

• 0

• -2

• +2

Find the overall charge for tin if it has -50 electrons and +50 protons.

• 0

• -2

• +2

• 43.6

• -4.8

• -93.4

• 51