NA
Amit Rastogi Enviornmental Studies Solutions for Exercise - NA
Simple step-by-step solutions to NA questions of The Motion Makers: Force, Work, and Energy from ThinkTrail CURIOSITY CHRONICLES A Coursebook for Science Grade 4. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from NA with Hints & Solutions
The push or pull on an object is termed as
Which is easier- Riding the bicycle up the hill/down the hill? Why?
Which is easier - pushing/pulling? Why?
Match the following.
| 1. lever | a. boat propeller |
| 2. pulley | b. bottle opener |
| 3. screw | c. giant wheel |
| 4. wheel and axle | d. saw |
| 5. wedge | e. crane |
The tools that make our work easy are called _____ machines.
Work is measured in _____ (joule/dyne) units.
Search for the words with the help of picture clues.
You have many sources of energy at your home. To save energy, which of these will you follow in your daily life? Select the correct ones:
1. Use of solar cooker instead of LPG stove during the day.
2. Open the windows for sunlight during daytime.
3. Use of CFL (Compact Fluorescent Lamp).
4. Use of more woollen clothes instead of using blower or room heater.
5. Using solar water heater instead of a geyser.
