2nd Grade Unit 3

Ms. Hwang beat a drum. The quick back and forth movements made the sound. What are these movements called?

• Waves

• Energy

• Vibrations

• Light

We need to use energy to make things work. Energy is...........

• How tired someone is

• Light

• Sound

• The ability to do work

Tags

NGSS.MS-PS3-5

At which location would Ms.Maor need to put the mirror to get light into the closet and why?

• Location 3, the light will go through the door in a straight line

• Location 2, light will travel straight down and the REFLECT or BOUNCE into the closet

• Location 1 light moves in a curve

• No where because the light won't get in

Tags

NGSS.MS-PS4-2

Light travels in a..........................? When light bounces that is called?

• Straight line; reflection

• Curve, energy

• Straight line, waves

• Zigzag path, reflection

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

In this picture light is moving how?

• From sun to the girl to the tree

• From the girl to the sun to the tree

• From the tree to the girl

• From the sun to the tree and then bouncing off into the girls eyes

Tags

NGSS.MS-PS4-2

How can we get this guitar to make sound?

• Plug it in

• Pull the strings, making vibrations

• Put energy

• Make waves

Tags

NGSS.MS-PS4-1

_____ is anything that has mass and takes up space

• Volume

• Mass

• Solids

• Matter

When I play a key on the piano it makes a low sound so the wavelengths will have a short ____________________.

• amplitude

• pitch

• volume

• sound

Tags

NGSS.MS-PS4-1

Mr. White reads in his book that parrots need a lot of sunlight and warmth so he buys a heating lamp for his pet parrot. When he checks on his parrot, Mr. White realizes that the lamp is not pointing toward the parrot. He places a mirror at Location 1 to get the light to travel towards his bird.

Did Mr. White place the mirror in the correct location, for the light to travel towards the bird? IF no which location does the mirror go?

• Yes he is correct

• No, it should be Location 3 for reflection

• No, it should be Location 2 for reflection

• None of the answers

Tags

NGSS.MS-PS4-2

Which is true?

•  The dog’s sound has more energy than the cat’s sound.

• The dog’s sound has the same energy as the cat’s sound.

• The cat's sound has the same energy as the mouse

• The dog’s sound has less energy than the cat’s sound.

Tags

NGSS.MS-PS4-1