#1UNIT D The amount by which a machine can multiply a force.

#1UNIT D The amount by which a machine can multiply a force. MECHANICAL ADVANTAGE

#2UNIT D A device that helps us do work.

#2UNIT D A device that helps us do work. MACHINE

#3UNIT D A rigid bar or plank that can rotate around a fixed point.

#3UNIT D A rigid bar or plank that can rotate around a fixed point. LEVER

#4UNIT D In this class of lever the EFFORT is in the middle.

#4UNIT D In this class of lever the EFFORT is in the middle. THIRD

#5UNIT D Is shaped like an inclined plane but it is used for a different purpose.

#5UNIT D Is shaped like an inclined plane but it is used for a different purpose. WEDGE

#6UNIT D One part of a system.

#6UNIT D One part of a system. SUBSYSTEM

#7UNIT D A steering wheel in a car is an example of this type of machine.

#7UNIT D A steering wheel in a car is an example of this type of machine. WHEEL & AXLE

#8UNIT D A group of parts that work together to perform a function.

#8UNIT D A group of parts that work together to perform a function. SYSTEM

#9UNIT D The force applied to the machine.

#9UNIT D The force applied to the machine. INPUT FORCE

#10UNIT D The force the machine applies to the object.

#10UNIT D The force the machine applies to the object. OUTPUT FORCE

#11UNIT D A force that opposes motion.

#11UNIT D A force that opposes motion. FRICTION

#12UNIT D A measurement of how well a machine or device uses energy.

#12UNIT D A measurement of how well a machine or device uses energy. EFFICIENCY

#13UNIT D The gear the force is applied to.

#13UNIT D The gear the force is applied to. DRIVING GEAR

#14UNIT D Is a cylinder with a groove cut in a spiral on the outside.

#14UNIT D Is a cylinder with a groove cut in a spiral on the outside. SCREW

#15UNIT D The formula for mechanical advantage is;

#15UNIT D The formula for mechanical advantage is; MA=OUTPUT FORCE/INPUT FORCE

#16UNIT D The formula for speed ratio is;

#16UNIT D The formula for speed ratio is; SR=INPUT D / OUTPUT D

#17UNIT D The amount of work depends on two things;

#17UNIT D The amount of work depends on two things; FORCE EXERTED & DISTANCE MOVED

#18UNIT D A measure of the amount of force applied to a given area.

#18UNIT D A measure of the amount of force applied to a given area. PRESSURE

#19UNIT D Pressure applied to an enclosed fluid is transmitted equally in all directions is known as ________ law.

#19UNIT D Pressure applied to an enclosed fluid is transmitted equally in all directions is known as ________ law. PASCAL’S

#20UNIT D A tool or device made up of one basic machine.

#20UNIT D A tool or device made up of one basic machine. SIMPLE MACHINE

#21UNIT D What is the formula for work?

#21UNIT D What is the formula for work? W = F x D

#22UNIT D If a small syringe with a diameter of 2 cm has a force applied to it of 20 N, and the large syringe on the other side has a diameter of 10 cm, how many Newtons of force will be present at the large syringe.

#22UNIT D If a small syringe with a diameter of 2 cm has a force applied to it of 20 N, and the large syringe on the other side has a diameter of 10 cm, how many Newtons of force will be present at the large syringe. 100N

#23UNIT D If a syringe system has an MA of 5 and the small syringe moves 15cm down, how for up will the large syringe move?

#23UNIT D If a syringe system has an MA of 5 and the small syringe moves 15cm down, how for up will the large syringe move? 3 cm

#24UNIT D The purpose of task.

#24UNIT D The purpose of task. FUNCTION

#25UNIT D A one-speed bike and a 21 speed bike are both __________ in performing the task.

#25UNIT D A one-speed bike and a 21 speed bike are both __________ in performing the task. EFFECTIVE

#26UNIT D A 21-speed bike is more _______ than a one-speed bike in performing the task.

#26UNIT D A 21-speed bike is more _______ than a one-speed bike in performing the task. EFFICIENT

#27UNIT D The physical form of the device that makes it useable.

#27UNIT D The physical form of the device that makes it useable. DESIGN

#28UNIT D When you buy a more fuel efficient car because you do not want to pollute as much you are considering the…

#28UNIT D When you buy a more fuel efficient car because you do not want to pollute as much you are considering the… ENVIRONMENT

#29UNIT D What is the MA of a syringe system where the small syringe is 5cm in diameter and the large syringe is 30 cm in diameter?

#29UNIT D What is the MA of a syringe system where the small syringe is 5cm in diameter and the large syringe is 30 cm in diameter? MA = 6

#30UNIT D In a block & tackle pulley system, what would be the MA if there are 4 pulleys.

#30UNIT D In a block & tackle pulley system, what would be the MA if there are 4 pulleys. 4

SCIENCE 8 UNIT D MECHANICAL SYSTEMS ROCK & ROLL REVIEW