All categories

3 years ago

What is simple machine

Physics

2 answers:

const2013 [10]3 years ago

6 0

Any of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever.

vodka [1.7K]3 years ago

6 0

Hello!

Explanation:

↓↓↓↓↓↓↓↓↓↓↓↓

Simple machines have few or no moving parts. They make work easier.

Inclined plane
Wedge
Screw
Lever
Wheel and axle
Pulley

Inclined plane is a sloping surface, such as a ramp. Inclined plane make it easier to lift objects. The distance is greater, but the amount of force used is less. The amount of work done is the same. Wedge is used to split things apart. Force is applied to the large area of the wedge. The force is concentrated on a smaller area at the pointed end. The wedge looks like two inclined planes placed back to back. A screw can hold things together. The threading grips materials. The threading on a screw looks like an inclined plane spiraling around the outside of the screw. Large screw are also used to lift things. A car jack lifts a car by using a large screw. A lever is a strong bar that turns about a fulcrum, or fixed point. It can be used to lift heavy objects. Force applied at one end is transmitted to the other end. A lever can change the direction of a force. Moving the position of the fulcrum affects how much force is needed. A wheel and axle consists of two circular objects of different sizes that are connected. The smaller-diameter object, the axle, is a rod that goes through the wheel and lets the wheel turn. When the axle is turned, the wheel moves a greater distance, but less force is needed to move it. A pulley changes the direction of a force. A pulley consists of a grooved wheel and a rope. Pulling down on the rope lifts objects. A construction crane uses a series of pulleys. A flagpole has a pulley at the top.

Hope this helps!

Thank you for posting your question at here on brainly.

-Charlie

You might be interested in

Find the range of a projectile launched at an angle of 30° with an initial velocity of 20m/s.

Tems11 [23]

Answer:

The range is 35.35 m

Explanation:

Projectile Motion

It's the type of motion that experiences an object projected near the Earth's surface and moves along a curved path exclusively under the action of gravity.

Being vo the initial speed of the object, θ the initial launch angle, and $g=9.8m/s^2$ the acceleration of gravity, then the maximum horizontal distance traveled by the object (also called Range) is:

$\displaystyle d={\frac {v_o^{2}\sin(2\theta )}{g}}$

The projectile was launched at an angle of θ=30° with an initial speed vo=20 m/s. Calculating the range:

$\displaystyle d={\frac {20^{2}\sin(2\cdot 30^\circ )}{9.8}}$

$\displaystyle d={\frac {400\sin(60^\circ )}{9.8}}$

$d=35.35\ m$

The range is 35.35 m

7 0

3 years ago

SO! I'VE GOT A COUPLE QUESTIONS RELATING TO SCIENCE (WHERE ARE MY SCIENCE WHIZZES?) TRUST ME THERE WILL BE MORE

Helga [31]

Answer:

nnnnnnnnnnnnnnnnnnnnnnnn

Explanation:

5 0

3 years ago

Read 2 more answers

5. The wire in consists of two segments of different diameters but made from the same metal. The current in segment 1 is I1. a.

Volgvan

Answer:

hello your question is incomplete attached below is the complete question

answer :

a) I1 = I2

b) J1 > J2

c) E 1 > E2

d) ( vd1 ) > ( vd2 )

Explanation:

a) The currents in the two segments are the same i.e. I1 = I2 and this is because the segments are connected in series

b) Comparing the current densities J1 and J2 in the two segments

note : current density ∝ 1 / area

The area of the second segment is > the area of first segment therefore

J1 > J2

J1 ( current density of first segment )

J2 ( current density of second segment )

c) Comparing the electric field strengths E1 and E2

note : electric field strength ∝ current density

since current density of first segment is > current density of second segment and conductivity of the materials are the same hence

E 1 > E2

d) Comparing the drift speeds Vd1 and Vd2

( vd1 ) > ( vd2 )

this because ; vd ∝ current density

7 0

3 years ago

The moon is smaller and more dense than the Earth, and has less extreme temperature changes.

Lerok [7]

The moon is smaller and more dense than the Earth, and has less extreme temperature changes. The statement presented is True. In terms of temperature, since there is no atmosphere on the moon, then it has less extreme temperature changes. The moon can reach 253 Fahrenheit in the day and -387 Fahrenheit at night.

8 0

3 years ago

Read 2 more answers

What combination of things happen on earth that helps make wind, and the weather on earth? (Please list at least two factors, an

Westkost [7]

Answer:

There are six main components, or parts, of weather. They are temperature, atmospheric pressure, wind, humidity, precipitation, and cloudiness. Together, these components describe the weather at any given time. These changing components, along with the knowledge of atmospheric processes, help meteorologists—scientists who study weather—forecast what the weather will be in the near future.

8 0

3 years ago