Class 4 Exam > Class 4 Notes > Science for Class 4 > Worksheet: Force, Energy & Work - 1
Class 4 Science - Force Energy and Work - CBSE Worksheets - 1
Q1: Multiple Choice Questions (MCQs).
(i) Which of them has stored energy?
(a) Water
(b) Air
(c) Log of wood
(d) All of these
(ii) In which case is energy required?
(a) In moving something
(b) Change ice to water
(c) Change water to water vapour
(d) All of these
(iii) Walking on slippery ground is difficult because there is:
(a) very little gravity between us and the ground
(b) very high gravity between us and the ground
(c) very little friction between our feet and the ground
(d) very high friction between our feet and the ground
(iv) In which of these cases is a force being applied?
(a) Lifting a book
(b) Stretching a string
(c) Kicking a football
(d) All of these
(v) Which of these is not a form of energy?
(a) Heat
(b) Light
(c) Water
(d) Electricity
Q2: True or False.
(i) The energy of fuels comes from the Sun.
(ii) Things thrown up will come down, even if there is no gravity.
(iii) Fuels have stored energy in them.
Q3: Fill in the blanks.
(i) Wood, petrol, coal or LPG are called ________.
(ii) ________ energy is used by plants to produce food.
(iii) Oiling reduces ________ between surfaces.
Q4: Match the following.
Q5: Answer the following questions in brief.
(i) What is the greatest source of energy on Earth?
(ii) How can we reduce friction?
(iii) What is the greatest source of energy on Earth?
Q6: Answer the following questions in detail.
(i) What are different forms of energy?
(ii) What is gravity? How is it useful?
(iii) Why is friction important?
You can find Worksheets Solutions here: Worksheet Solutions: Force, Energy & Work - 1
The document Class 4 Science - Force Energy and Work - CBSE Worksheets - 1 is a part of the Class 4 Course Science for Class 4.
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FAQs on Class 4 Science - Force Energy and Work - CBSE Worksheets - 1
| 1. What is the definition of force? |  |
Ans. Force is a push or pull that can change the state of motion or shape of an object.
| 2. What are the different types of forces? | |
Ans. There are several types of forces, including gravitational force, electromagnetic force, frictional force, and applied force.
| 3. How is work related to force and energy? | |
Ans. Work is the transfer of energy that occurs when a force is applied to an object and causes it to move in the direction of the force.
| 4. What is the relationship between force, mass, and acceleration? | |
Ans. According to Newton's second law of motion, the force acting on an object is equal to the mass of the object multiplied by its acceleration.
| 5. How is energy related to work? | |
Ans. Energy is the capacity to do work. When work is done on an object, its energy is changed or transferred from one form to another.
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Dec 22, 2024 Last updated |
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