Advertisements
Advertisements
Question
Two objects repel each other. This repulsion could be due to
Options
frictional force only
electrostatic force only
magnetic force only
either a magnetic or an electrostatic force
Advertisements
Solution
either a magnetic or an electrostatic force
Explanation:
The reason for repulsions may be either an electrostatic (in case of similar charges) or a magnetic (in case of similar poles) force.
APPEARS IN
RELATED QUESTIONS
An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gap in the following statement using the following terms.
The force applied by the archer to stretch the bow is an example of ______ force.
Fill in the blank.
On squeezing a gum tube, its ............. changes.
Fill in the blank.
Lubricants are used to ..................... friction.
Select the correct alternative.
Friction
What effects can a force have on a moving body?
State the effect produced by a force in the following case:
A player uses his stick to deflect the ball.
Name the type of force which act in the following case:
A horse moves a cart
Name the type of force which act in the following case:
A man rows a boat.
Two balls of the same size but of different materials, rubber and iron are kept on the smooth floor of a moving train. The brakes are applied suddenly to stop the train. Will the balls start rolling? If so, in which direction? Will they move at the same speed? Give reasons for your answer.
Two women are of the same weight. One wears sandals with pointed heels while the other wears sandals with flat soles. Which one would feel more comfortable while walking on a sandy beach? Give reasons for your answer.
