Chapter 5 Vocab

Friction is a force that acts in an ___________ direction of movement.

• similar
• opposite
• parallel
• west

Which type of friction occurs when an object moves through a liquid or gas?

• sliding
• fluid
• static
• rolling

Which type of friction occurs when solid surfaces slide over each other?

• rolling
• static
• sliding
• fluid

Which type of friction occurs when an object rolls over or rotates on a surface?

• sliding
• static
• fluid
• rolling

Which type of friction occurs when objects are not moving?

• static
• sliding
• fluid
• rolling

Oil between machine parts would be an example of which type of friction?

• static
• sliding
• fluid
• rolling

An object is _____ if its position changes relative to another object.

• in motion
• at reset
• a frame of refence
• magical

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

Speed =

• distance / time
• time / distance
• distance * time

Tags

NGSS.MS-PS3-1

Change in speed over a given period of time is

• velocity
• motion
• speed
• acceleration

The rate at which velocity changes is called 

• motion
• average speed
• instantaneous speed
• acceleration