Force and Work

Work is distance through which _____ is exerted

The force of ________ will ALWAYS OPPOSE the applied force.

A push or pull that acts on an object is called

• Work

• Force

• Energy

• Momentum

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A force that tries to stop a moving object is known as?

• Gravitational force

• Force of friction

• Mechanical force

• Electrical force

Force can move a stationary object or stop a moving object.

• True

• False

Tags

NGSS.MS-PS2-2

Identify whether work is done or not in the picture

• Yes

• No

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A student has 2 boxes that need to be moved. Box A is filled with heavy dishes and glasses. Box B is filled with ping pong balls. Both boxes are the same size. Which box requires the student to use more force to move it? Why?

• Box A will require more force because the mass of the dishes are less than the ping pong balls.

• Box B will require more force because more ping pong balls can fill the box.

• Box A will require more force because the mass is greater in that box.

• Both boxes will require the same amount of force because the boxes are the same.

Tags

NGSS.MS-PS2-2

Which statements are true about the bookcases shown in the pictures above? You will need to choose 2 answers.

• Bookcase 2 has a greater mass than bookcase 1.

• Bookcase 1 has a greater mass than bookcase 2.

• More force is probably being applied to bookcase 2.

• Both bookcases have kinetic energy while being pushed.

• If given the same amount of force, bookcase 1 will move farther than bookcase 2.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the formula for calculating work done when a force is applied?

Which of the following is an example of work being done?

• Holding a book in place

• Pushing a car up a hill

• Standing still

• Leaning against a wall