Forces

____________ causes change.

• an experiment

• force

• a prediction

• nothing

Tags

NGSS.MS-PS2-2

A __________ can make a task easier.

• gravity

• simple machine

• worker

Tags

NGSS.MS-PS2-1

A can opener uses __________ to open a can.

• heat energy

• electrical energy

• chemicals

• force

When a person uses a simple machine, he or she needs to apply __________ force.

• less

• a lot of

• no

• super sonic

Which of these things can happen when you apply force?

• the position of a chair can move.

• a light bulb becomes brighter

• a cake can bake faster

• an object sits still

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which person did work?

• Jack cleaned his room.

• Erika thought about dinner.

• Carla watched a movie.

• Monty listened to a CD.

Why do people use simple machines?

• to make work more fun

• to make work take longer

• to make work harder

• to make work easier.

You use force to type on a keyboard and your computer sends a _____ to make the letter appear on the screen.

• signal

• wind

• blades

• force

__________ is a force that pulls objects down, toward the ground.

• electricity

• gravity

• centripitel

• motion

Tags

NGSS.5-PS2-1

Force can change the __________ of an object.

• direction of movement

• size

• color

• smell

Tags

NGSS.3-PS2-1