Bees in the trap
The force of an object's weight that a machine needs to overcome is called a...
a. simple machine
b. engineer
c. load
d. infrastructure
c. load
Vocabulary: A device, such as a lever or a pulley, that helps to multiply the effort in order to move a load is called a _________ __________.
simple machine
Vocabulary: Something that is done when a force moves an object is called ___________.
work
Vocabulary: A machine that converts stored energy into movement is called an __________.
engine
A person who uses science and math to design products and processes that meet needs and solve problems is called an...
a. scientist
b. engineer
c. teacher
d. student
b. engineer
Vocabulary: A working model that allows engineers to test their idea is called a __________.
prototype
This simple machine is a flat surface that is tilted, like a ramp.
a. pulley
b. screw
c. lever
d. inclined plane
d. inclined plane?
Vocabulary: This simple machine uses a wheel with a rod through the center to help things roll.
__________ and __________
wheel and axle
Vocabulary: A long bar and a fulcrum make this simple machine that helps lift heavy things.
lever
This simple machine has an inclined plane wrapped around a cylinder and is used to hold things together.
a screw
Vocabulary: These are toothed wheels that fit together and turn each other.
gears
Vocabulary: When one gear turns clockwise, the gear touching it turns this direction.
counterclockwise?
Vocabulary: This machine uses spinning blades to capture wind or water energy.
turbine
Vocabulary: Hydraulics use this substance to create force.
liquid
Vocabulary: A small model engineers build to test an idea is called a _________.
prototype
Vocabulary: A seesaw is an example of this simple machine.
lever
Vocabulary: Q: A ramp makes work easier by spreading the job out over a longer ______.
distance
A doorknob is actually this type of simple machine.
wheel and axle
A flagpole, window blinds, and cranes are examples of this simple machine.
Pulleys
This simple machine lets you transfer motion and change speed.
gear
Vocabulary: A car brake system works using this type of power.
hydraulics or hydraulic power
Vocabulary: Hydraulics can lift very heavy things because liquid cannot be __________.
compressed
The first step in the engineering process is to?
Figure out the problem
The _________ is the force of an object's weight that a machine needs to overcome.
load
If your car slows down because the wheels rub against the floor, it is because of __________.
friction