P. 2.6

A pencil falls off of a desk. What moves the pencil toward the floor? 

• mass

• friction

• gravity

• speed

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Four solid balls, each with a different mass, are moving at the same speed. Which ball would require the most force to stop its motion? 

• ball with a mass of 5 kg 

• ball with a mass of 10 kg 

• ball with a mass of 15 kg 

• ball with a mass of 20 kg

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

This graph shows the motion of an object. Which best describes the motion of the object?

• It is sitting still.

• It is moving at a constant speed.

• It continually increases its speed.

• It travels at constant speed and suddenly stops.

Tags

NGSS.MS-PS3-1

Which investigation will best test the effects of gravity on moving objects?

• pencils falling from the same height

• balloons floating upward from the same height

• a bicycle speeding up on a flat surface

• a ball slowing down on a flat surface

Tags

NGSS.MS-PS2-2

Carey left a bowling ball and kickball outside on a windy day. Which best explains why the kickball moved but the bowling ball did not?

• The kickball has less mass so it was easier to move.

• The force of gravity acting on the bowling ball is greater.

• The mass of the kickball is greater so it is easier to move.

• The force of gravity acting on the kickball is greater.

Tags

NGSS.MS-PS2-2

One of the three basic forms of matter that has a definite (constant) shape and volume. it does not take the shape of its container.

• Solid

• Liquid

• Gas

• Plasma

A change from one state (solid or liquid or gas) to another without a change in chemical composition

• Matter

• Phase Change

• Chemical Change

Tags

NGSS.MS-PS1-4

This is an image of a ________________.

• Solid

• Liquid

• Gas

• Plasma

Tags

NGSS.MS-PS1-4

characteristics of matter that can only be observed when one substance's chemical composition causes it to change into a different substance, such as iron into rust

• Physical Properties

• Chemical Properties

• Phase Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

substances composed of only one kind of atom

• Atoms

• Elements 

• Molecules

• Matter