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FLASHCARDS FORCE AND MOVEMENT

Jorge Andrés Luna Suquilanda Ciencias Naturales Primero Español 20 fichas

Fichas del conjunto (20)

1FORCEStrength or energy as an attribute of physical action or movement.
2MOVEMENTThe action or process of moving especially. For example: when you go from place to place and accomplish different tasks.
3FRICTIONIs a force between two surfaces that slows down moving objects. Friction happens when two things rub against each other. For example: a football and the ground.
4SPEEDSpeed tells us how fast something moves. To calculate speed, we divide the distance by the time it takes to travel this distance.
5SIMPLE MACHINESMachines that modify the action of forces. For example: the wheel, the pulley, the lever or the inclined plane.
6MOTOR / ENGINEThis component produces movement. Motors run on electrical energy. Engines run on chemical nergy from fuel.
7GRAVITYIs the force which attracts all bodies towards the Earth's surface.
8GEARSThese are wheels with teeth. They help to produce movement inside machines.
9CRANKSThese are levels that turn in circles. They are used in some manual machines to start movement.
10DOME STRUCTURESA dome is created from multiple arches or vaults, which are connected in a symmetrical manner to form a sound structural entity. Domes are usually circular.
11THERMOSTATSThese allow us to regulate the temperature in our homes and to avoid wasting energy.
12APPLIANCESRefrigerators, washing machines, dishwashers or vacuum cleaners reduce the time and energy we spend on daily tasks.
13FIRST-CLASS LEVERSThe fulcrum is between the load and the energy moving the force. Crowbars, pliers and scissors are examples of first-class levers.
14SECOND-CLASS LEVERSThe fulcrum is at one end and the load is between the fulcrum and the force. Guillotines, wheelbarrows and nutcrackers are examples of second-class levers.
15THIRD-CLASS LEVERSThe force is applied between the fulcrum and the load. Your arm and some types of cranes are examples of third-class levers. In your arm, the fulcrum is your elbow. The force is applied by your muscle.
16WHEELThe wheel is a simple machine, but it can be used as a component of complex machines. It consists of a round part which turns on an axle.
17AIR RESISTANCEFriction happens when two objects rub against each other, for example, a moving ball and the ground. when an object moves against a gas, we call it resistance.
18WATER RESISTANCEFriction happens when two objects rub against each other, for example, a moving ball and the ground. when an object moves against a liquid or a gas, we call it resistance.
19COMPLEX MACHINESIs a machine made up of two or more simple machines that make your work easier to do.
20ELECTRICAL CIRCUITSThese carry electricity to the motor and other parts. circuits can only work when they are connected to mains or when they have batteries.