Unit 2: Force/Motion

Question 1

Force

Answer 1

a push or pull in a particular direction

Question 2

motion

Answer 2

movement or change in position

Question 3

balanced force

Answer 3

Separate forces the combine to cancel each other out

Question 4

friction

Answer 4

when two objects rub against each other in opposite directions

Question 5

simple machine

Answer 5

a machine that makes work easier

Question 6

gravitational force

Answer 6

a force that causes objects with mass to attract to each other

Question 7

unbalanced force

Answer 7

a force that is not cancelled out by another force and causes a change in the motion of an object.

Question 8

Are you ready for the second part of this deck: simple machines

Answer 8

Yes.

Question 9

lever

Answer 9

a stiff bar supported by a fulcrum that can lift or move loads

Question 10

examples of levers

Answer 10

Examples of levers include wheelbarrows, scissors, bottle openers, mops, brooms, shovels, nutcrackers and sports equipment like baseball bats, golf clubs and hockey sticks.

Question 11

pulley

Answer 11

a rope and wheel system that lifts and lowers loads

Question 12

examples of pulleys

Answer 12

Elevators use multiple pulleys in order to function.

Many types of exercise equipment use pulleys in order to function.

Question 13

wedgie

Answer 13

a triangular shaped object that holds objects in place or cuts objects

Question 14

examples of wedgies

Answer 14

door stop

Question 15

inclined plane

Answer 15

a ramp that connects a lower level to a higher level

Question 16

examples of inclined planes

Answer 16

Examples of inclined planes are ramps, sloping roads, air hammers, carpenter’s planes and wedges.

Question 17

screw

Answer 17

an inclined plane wrapped around a rod, typically made of wood or metal with a wedgie at the tip

Question 18

wheel and axle

Answer 18

a combination of a wheel rotating around a rod that moves objects