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1. Name the 6 different simple machines.

1. Name the 6 different simple machines. lever inclined plane screw wheel and axle wedge pulley

Classify each of the following types of simple machines.

This helps you move an object across the ground because they cut down on the amount of friction between what you're trying to move and the surface you're pulling it against.

Examples of this simple machine are used to hold things together. It is made up of an inclined plane wrapped around a cylinder.

This simple machine can be used to slip things apart or hold a door open.

This version of a simple machine is a wheel with teeth on it that fit together when the simple machine is turned. These simple machines are used to increase or decrease turning power by changing their size.

This simple machine can be used to lift a weight. It has a fulcrum, or pivot point, which can be located in the center, near the end or at the end of this simple machine.

An inclined plane turned on its side which helps push things apart

A heavy object could be rolled up this simple machine, instead of lifting it straight up. Using this simple machine can save effort, although the object must usually cover more distance if this simple machine is used.

A rope, wheel with a groove in it and a weight make up this simple machine. You can pull down on the rope to lift the weight.

The simplest of simple machines because to make it work, nothing moves.

This makes work seem easier because it changes the direction of motion to work with gravity.

56. Where is the fulcrum, resistance, and effort in this lever?

57. What class of lever is a wheelbarrow?

58. Where is the fulcrum, resistance, and effort in this lever?

59. What class of lever is a seesaw?

60. Where is the fulcrum, resistance, and effort in this lever?

61. What class of lever is a nutcracker?

62. Where is the fulcrum, resistance, and effort in this lever?

63. What class of lever is a door?

64. Where is the fulcrum, resistance, and effort in this lever?

65. What class of lever is a broom?

66. Where is the fulcrum, resistance, and effort in this lever?

67. What class of lever is a pair of scissors?

68. What is a push or pull called?

69. Is work done if a person holds 5 textbooks, but doesn’t move?

70. Is work done if a a dog picks up a stick and carries it to his dog house?

71. What is the unit for a force?

72. What is a quantity that measures the effects of a force acting over a distance called?

73. What is the unit for work?

74. What is a Newton·meter?

75. In the SI system, what is the approximate weight of an apple?

76. What is a quantity that measures the rate at which work is done called?

77. What is the SI unit for power?

78. What is the English unit for power?

79. Name two ways you can multiply a force by using a simple machine.

80. What is the name of a quantity that measures how much a machine multiplies force or distance?

81. What are the three members of the lever family?

82. What are the three members of the inclined plane family?

83. What is the fulcrum of a lever?

84. What is a compound machine?