Systems In Action

Question 1

6 types of machines

Answer 1

Incline plane
Lever
Wedge
Screw
Wheel
Pulley

Question 2

Incline plane examples

Answer 2

Jump, hatchet

Question 3

Lever examples

Answer 3

Teeter totter, hammer, wheel barrel

Question 4

Wedge examples

Answer 4

Hatchet, shovel, knife

Question 5

Screw examples

Answer 5

Winding road, screw, jar

Question 6

Wheel examples

Answer 6

Bike tire, Farris wheel, car tire

Question 7

Pulley examples

Answer 7

Elevator, bucket from well

Question 8

3 types of levers

Answer 8

First class
Second class
Third class

Question 9

Examples of first class levers

Answer 9

Teeter totter, pry bar

Question 10

Examples of second class levers

Answer 10

Bottle opener

Question 11

Examples of third class levers

Answer 11

Using a rake, shooting a hockey puck

Question 12

What is the gravitational constant?

Answer 12

9.8 newtons per kilogram. The speed at which all things fall from earth

Question 13

What is the difference between mass and weight?

Answer 13

Mass is the amount of matter in an object.
Weight is the amount of force on an object due to gravity
The mass of an object does not change due to gravity

Question 14

What does MA stand for?

Answer 14

Mechanical advantage

Question 15

What does IMA stand for?

Answer 15

Ideal mechanical advantage

Question 16

What is the unit of measurement for force?

Answer 16

Newton ( N )

Question 17

What is the unit of measurement for mass?

Answer 17

Kilogram ( kg )

Question 18

What is the unit of measurement for weight?

Answer 18

Newton ( N )

Question 19

What is the unit of measurement for distance?

Answer 19

Cm, mm, m, km

Question 20

What is the unit of measurement for energy?

Answer 20

Joule ( J )

Question 21

What is the unit of measurement for work?

Answer 21

Joule ( J )

Question 22

Law of conservation

Answer 22

You can not create energy or destroy it

Question 23

How to find the IMA for a pulley

Answer 23

By counting the number of support ropes fixed pulley is one

Question 24

What is force?

Answer 24

A push or pull that acts on an object

Question 25

What are the 2 types of forces?

Answer 25

CONTACT and NON-CONTACT

Question 26

Formula for work

Answer 26

Force x distance

Question 27

Relationship between IMA and MA

Answer 27

IMA means no friction and MA means friction

Question 28

What is friction

Answer 28

A force that opposes the relative motion of an object

Question 29

What is energy

Answer 29

The ability to do work

Question 30

What is MA

Answer 30

Mechanical advantage

Question 31

What is work

Answer 31

The amount of effort spent when a force causes an abject to move a distance

Question 32

What is input force

Answer 32

The force that is applied to a machine

Question 33

What is output force

Answer 33

The force that a machine applies to an object

Question 34

What is kinetic energy

Answer 34

The energy of an object that is moving

Question 35

What is potential energy

Answer 35

Energy that is stored

Question 36

What is a mechanical system

Answer 36

Physical parts working together

Question 37

What is gravity

Answer 37

The attraction between two objects due to their mass

Question 38

IMA formula for a wheel and axle

Answer 38

Divide the radius of the axle by the radius of the wheel

Question 39

Calculating the force of gravity on an object

Answer 39

Force of gravity= ( mass of object in kg) x ( earth’s gravity in N/kg )
Fg= mg

Question 40

How much work goes into moving certain objects?

Answer 40

The amount of work done depends on the amount of force exerted and the distance at which the force is applied