Quizziz Simple Machines, Power, misc

When Arjun applies the brakes on his bicycle, the rate of change of ____ of the bicycle decreases.

• position

• time

• velocity

• force

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

James noticed that when he puts a bottle of water in the refrigerator, the particles in the water move

• the lower the temperature

• the higher the temperature

• the greater the number of particles

• the lower the number of particles

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Kai is operating a machine in his workshop. Despite his best efforts, he notices that the machine's efficiency is less than 100%. What could be causing this?

• friction

• gravity

• input force

• reaction force

Evelyn, Emma, and Avery are studying simple machines in their physics class. They are trying to identify which of the following everyday objects is a form of the inclined plane. Can you help them?

• Clothesline pulley

• Corkscrew

• Bicycle wheel and axle

• Crowbar lever

Ethan, Jackson, and Mason are trying to move a heavy cart up three steps to their treehouse. Which simple machine would most likely increase the distance but reduce the force they need to apply?

• lever

• screw

• pulley

• inclined plane

Tags

NGSS.MS-ETS1-2

Charlotte is building a device to help lift heavy objects. Which statement correctly explains what she might be using?

• Charlotte's device is made up of one or more simple machines

• Charlotte's device is made up of two or more simple machines.

• A screw is a type of inclined plane.

• None of the above

A knife is an example of a (an)

• inclined plane
• wedge
• ramp
• pulley

To increase the mechanical advantage of a lever

• make sure the fulcrum is in the middle of the lever
• move the fulcrum closer to the load
• move the fulcrum closer to the effort
• use a bigger fulcrum

Tags

NGSS.MS-PS2-2

________________ is done whenever a force moves an object a distance

• load

• friction

• force

• work

A ramp is an example of a(n)

• inclined plane
• fulcrum
• force
• lever

Tags

NGSS.MS-PS3-5

NGSS.MS-PS2-4

NGSS.MS-PS3-1