time and motion class7

the S.I unit of speed is

• cm/s

• cm

• m

• m/s

Tags

NGSS.MS-PS3-1

Speed =

• distance covered

• distance covered X time taken

• distance covered / time taken

• time taken / distance covered

Tags

NGSS.MS-PS3-1

Motion of objects can be presented in pictorial form by their...............

• distance- speed graph

• distance-time graph

• time-time graph

• speed- distance graph

Tags

NGSS.MS-PS3-1

When a body covers unequal distances in equal intervals of time then it is said to be in ............. motion

• uniform

• non uniform

• periodic

• vibratory

The distance covered by an object in a ________ is called as the speed.

• Unit time

• Unit length

• Position

The basic unit of speed is__________.

• m/s

• m/hr

• km/hr

Earlier time measuring instrument

• 
• 
• 

A simple pendulum consists of a _________ and thread suspended from a rigid stand.

• 
• 
• 

In modern wrist watch , time is measured by the vibrations of a ................crystals

• Quartz

• Diamond

• GOLD

SI unit if time

• hour

• minute

• seconds