Physics grade 7

Why is person B having a hard time moving down the hill?

• Person B has more friction than person A.

• Person B has the same friction as person A.

• Person B is out of shape.

• Person B has less friction has person A.

Creating a fire in your fireplace with logs and a match would best be an example of which energy transformation?

• mechanical energy to light energy

• chemical energy to thermal energy

• chemical energy to electrical energy

• thermal energy to chemical energy

Does light need a medium to travel?

• 
• 

Lunar eclipse occurs when...

• sun;earth;moon come in a straight line

• moon;sun;earth come in a straight line

• pluto;earth;saturn come in a straight line

Tags

NGSS.MS-ESS1-1

Example of a opaque object is

• black box

• butter paper

The measurement of how much mass is contained in a given volume is called

• Weight
• Melting point
• Boiling point
• Density

The volume of an irregular object can be measured by

• multiplying the object’s length, width, and height.
• dividing the object’s density by its mass.
• submerging the object in water in a graduated cylinder
• placing the object on a triple-beam balance.

Magnets or objects with opposite charges will:

• repel each other

• attract each other

• cause a black hole to appear

• implode

Identify the image

• broken box with duct tape

• pinhole camera

Tags

NGSS.HS-ETS1-2

When an object blocks the path of light, what is formed?

• A problem

• A fog

• A reflection

• A shadow