Motion in application - class-VI
| Description: motion in application | |
| Number of Questions: 34 | |
| Created by: Arav Srivastava | |
| Tags: along with motion simple machine lever a little effort, lot of work simple machines work, energy and machines physics common machines machines |
A pulley system has a single fixed pulley and a single movable pulley. Its mechanical advantage is ____ .
A simple machine :
Which of the following does not represent a simple machine?
Simple machines help us to do work more:
The radius of the press cylinder in a hydraulic press is equal to the diameter of its pump cylinder. Its mechanical advantage is __________.
A device which helps to lift heavy loads or speed up the motion or change the direction of force in the desired direction.
Any sloping flat surface along which a load can be easily pushed or pulled is called
Simple machine is classified into ....... major classes.
An external force applied to a simple machine to overcome the load is effort.
State true or false.
A crow bar is used for tearing a part a piece of wood.
State true or false.
A doorknob is an example of wheel and axel.
Simple machines make work easier by trading _____ for force.
The velocity ratio (VR) for a machine is-
Which of the following is a simple machine?
Which of the following contains only simple machines?
Which part of the lever is the part you are trying to move?
Which simple machine does a flagpole make use of?
Which simple machine can be used to split a log?
Which simple machine is used to hold objects together?
What should you do to reduce the amount of effort needed to lift something using a first class lever?
Which part of the lever supplies the force to move something?
Wheel and axle together constitutes a
Indentify the following:
- It uses Integrated Circuit assemblies as memory to store data persistently.
- It has no moving mechanical (D) MI of these components and it is typically more resistant to physical shock.
A simple machine is a device that makes work easier by :
Which of the following is a simple machine?
If a machine is lubricated with oil
In an ideal mechanical the output energy is :
A ________ is used to lift heavy objects.
For every turn of a screw jack:
Mechanical advantage of a first order lever is :
A machine _________ be used as a force multiplier as well as speed multiplier simultaneously. Fill in the blank.
The law of a certain lifting machine is $P =W/50+ 1.5$. The velocity ratio of the machine is 100. Find the maximum possible mechanical advantage and maximum possible efficiency of the machine
A gear is a
Which one of the following can also act as a lubricant in machines?