Force
ICSE · Class 10 · Physics
Flashcards for Force — ICSE Class 10 Physics. Quick Q&A cards covering key concepts, definitions, and formulas.
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Get startedState the definition of force.
Answer
Force is a push or pull applied on a body by another body to change its state, size, or shape. It can change the dimensions of the body.
A force changes the shape of a spring. What type of effect is this?
Answer
This is a change in dimensions. Force can stretch, compress, bend, or deform a body. Example: loading a spiral spring stretches it and changes its length.
Differentiate between contact forces and non-contact forces.
Answer
Contact forces act only when objects are in physical contact, such as frictional force, normal reaction force, tension, spring force, and collision force. Non-contact forces act without physical conta…
Why does frictional force act opposite to motion?
Answer
Frictional force arises due to roughness of surfaces and acts opposite to the direction of motion. It resists sliding between two surfaces in contact. Example: a block on a rough surface experiences f…
Why does a block on a table not fall through the surface?
Answer
The table exerts a normal reaction force upward. This force is produced due to the weight of the body and acts opposite to the direction of weight, balancing the downward pull of gravity.
A 2 kg mass is supported by a string. What force develops in the string?
Answer
This is tension in the string. Step 1: A string fixed at one end and loaded at the other develops an internal upward force. Step 2: This force is called tension. Answer: The string experiences tension…
How does a stretched spring produce restoring force?
Answer
When a spiral spring is stretched or compressed, an internal force acts opposite to the displacement. This restoring force is proportional to the extension produced in the spring.
Two bodies collide and move apart. What forces act during the collision?
Answer
Equal and opposite forces act on the two bodies during collision. Step 1: Body A exerts force on Body B. Step 2: Body B exerts force on Body A. Step 3: These two forces are equal in magnitude and oppo…
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