Semester 1 Final Chapter 14

__________________________ is the product of force and distance

__________________________ is the rate of doing work

A __________________________ is a device that changes force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

__________________________ equals the ratio of the output force to the input force

__________________________ of a machine is the mechanical advantage in the absence of friction

Tags

NGSS.MS-ETS1-1

__________________________ is the percentage of work input that becomes work output

A __________________________ is a combination of two or more simple machines that work together

In which direction does force need to act in order for work to happen

• The opposite direction of movement

• The same direction of movement

Which is NOT a way that machines make work easier to do?

• Changing the distance over a force acts

• Changing the size of force needed

• Changing the direction of the force

• Changing the duration of a force

Tags

NGSS.MS-ETS1-2

Which is greater when friction is present?

• Work input

• Work output

Tags

NGSS.HS-PS2-3