A camel is able to move fast on sand. Question-4 While taking the aim at the target, an archer stretches her bow. Answer: Two examples of forces that cause a change in the shape of an object are as follows: i Squeezing of a plastic bottle changes the shape of the bottle. Who is more powerful and why? The image of a person 1 m in front of a mirror is 1 m back to the mirror. Answer: a Image of the object placed at A is formed behind the mirror. This circular tube is now closed at one end with a cardboard disc. Can you think about any other way to find the area of café? Question 6 A blacksmith hammers a hot piece of iron while making a tool.
As the opening of droppertube is dipped in water, water rises up to fill empty inside of dropper due to atmosheric pressure on the outer surface of water. The other types of questions that are crucial are based on objects and the force acting with the explanation of the result of the forces. Now, gently push the ball along the level surface Fig. The author admits that as he was young he could not say no to the invitation of the lady. Answer: On rubbing an inflated balloon with a piece of synthetic cloth, it becomes charged.
The author with all his monetary constraints decided to visit the restaurant where senators usually go only to come across some embarrassing situations. Calculate the work done by him. When it is taken near the wall, it will get attracted towards the uncharged wall because of the electrostatic force which is the force exerted by a charged body on another uncharged body. A 150 kg car engine develops 500 W for each kg. Also, verify the volumes by doing the calculations. Question 1 A square and a rectangular field with measurements as given in the figure have the same perimeter.
After travelling a distance of 1. On this glass plate, several small and broken pieces of coloured glass are placed. Is there any change in speed of the stone? The hand feels tired due to the weight of bucket. Answer: We make use of muscular force to hold a bucket of water above the ground. Push the ball again while it is still moving. Based on this information fill up the gaps in the statements using the following terms. Is there any change in its speed? Next, bring the other end of the magnet near the same end of the magnet placed on the rollers Fig.
This end is now closed by a round glass plate allowing enough space for the coloured glass pieces to move fig d. Let its engine also stops at the same time. How high he can jump on the planet A? Two friends A and B are applying a force of 2 newton and 4 newton on a box in the same direction. Then the air in the dropper is seen to escape in the form of bubbles. In liquids, the pressure a increases with depth b decreases with depth c remains same at all depths d sometimes increases sometimes decreases Answer: a Question 9.
Does the force of gravitation exist between two objects on the earth? Answer: The rope will move towards side A as more force is applied by side A. An archer stretches her bow while taking aim at the target. The other option is to learn through our live learning android app. Answer: We make use of muscular force to hold a bucket of water above the ground. What is meant by muscular force? And the difference between both the figures is that one is cylinder and the other one is a cube. Answer- a Muscular force is the force which the archer applies to stretch the bow. Visit to of the page.
In the beginning of the story when the author visits Foyot thinking that he would manage with his limited budget, he finds the unexpected thing. State the two factors which describe the state of motion of an object. It is important that this glass plate touches the prism mirrors. A closed cylindrical container of radius and height 14m and 4m is made of steel sheet, Calculate the quantity of sheet required to make the container. A garden is developed around the house. Why is it comfortable to lift a school bag with broad straps than thin straps? Answer: Yes, it is possible when a body is moving on a circular path.
How does the force due to hammering affect the piece of iron? Find the speed of car B just after the collision. Therefore, the net force on the bucket is zero. Answer: When a blacksmith hammers a hot piece of iron, he uses his muscular force. Download links are at the end of online solutions of each chapter. This prism is fixed into a circular cardboard tube. Hence, reflections from the polished table will be regular. Question 8: Image formed by a plane mirror is a virtual, behind the mirror and enlarged.