What keeps a satellite in orbit?

• friction

• centripetal force

• acceleration

• velocity

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

What is the difference between the initial position and the final position of an object?

• Distance

• Displacement

• Speed

• Net area

What is the term for speed at a particular instant in time?

• instantaneous speed

• constant speed

• average speed

• average velocity

What is the term for the distance it takes an object to travel in a certain amount of time?

• constant speed

• average speed

• instantaneous speed

• instantaneous velocity

On a distance-time graph, which object moves the slowest?

• the steepest slope

• the most gradual slope

On a distance-time graph, which object moves the fastest?

• the steepest slope

• the most gradual slope

Why does an ice skater slow down as she glides across the ice?

• speed

• momentum

• gravity

• friction

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following is an example a contact force?

• A musician playing the keys on a piano

• A ball falling due to gravity

• A magnetic force pulling a magnet across the table

Which of the following is an example of a noncontact force?

• A musician pressing the keys on a piano

• A karate student breaking a board

• A ball falling due to gravity

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

What is the process of changing position?

• Motion

• Distance

• Displacement

• Velocity

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2