everyday forces and their effects

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Cards (53)

What is an everyday force?
A push or pull that changes motion
What are the effects of everyday forces on objects?
Change in motion
Change in shape
How does normal force support us?
It supports our weight when we sit on a chair
What is gravity?
The force that pulls everything towards the Earth
What happens when you drop a ball?
Gravity pulls it down at 9.8 m/s²
What happens when two surfaces rub together?
Friction opposes their motion
What is static friction?
Keeps objects at rest, preventing sliding
How does gravity affect the speed of a falling ball?
The ball accelerates at a constant rate
How does electric force impact our daily lives?
It powers our electronic devices and can cause lightning
What does static friction prevent?
It prevents objects from sliding
What is sliding friction?
Occurs when surfaces slide past each other
What are the effects of friction?
Useful: Allows walking and gripping
Undesirable: Slows down machines
How does normal force act when you sit on a chair?
It pushes upwards to equal your weight.
Why is friction important in everyday life?
It allows us to walk or grip things without slipping
How do the magnetic field lines behave as they get farther from the magnet?
The magnetic field lines become more spread out and less dense
The strength of the magnetic field decreases as you move farther from the magnet
How does magnetic force function in everyday life?
It allows compasses to point north and holds refrigerator magnets
How does gravity act like an invisible rope?
Connects you to the Earth
Keeps your feet firmly on the ground
How does the strength of the magnetic field change as you move from the center of the magnet to the edges?
The magnetic field strength decreases as you move from the center to the edges
What are the five main everyday forces?
Gravity, friction, normal force, magnetic force, electric force
What are the key effects of magnetic force between magnets?
Same poles repel each other
Opposite poles attract each other
Magnetic field lines flow from north to south
What are the two poles shown in the image?
North (N) and South (S)
What natural phenomenon is caused by electric force in clouds?
Lightning
What is electric force?
A push or pull between charged objects
How does the shape of the magnetic field lines change as you move from the center of the magnet to the edges?
At the center, the field lines are more concentrated and perpendicular to the magnet surface
Towards the edges, the field lines become more curved and spread out
How does an everyday force affect an object?
It changes the object's motion or shape
What does a compass align with?
Magnetic field lines
What is the definition of normal force?
It is a supporting force preventing sinking.
How does electric force compare to gravity?
Both are invisible but powerful forces
What is rolling friction?
Occurs when one surface rolls over another
When would you experience sliding friction?
When pushing a box across the floor
In what way does normal force contribute to stability?
It supports you and prevents sinking.
What does gravity prevent us from doing?
Floating away from the Earth
What is electric force?
A force between electrically charged objects
What is magnetic force?
A force between magnets or magnetic materials
What happens when two magnets with the same poles are close together?
They repel each other
What happens when like charges are near each other?
They repel and push apart
What is the shape of the magnetic field lines shown in the image?
The magnetic field lines are curved and form closed loops
The field lines originate from the South pole and terminate at the North pole
What is friction?
A force that resists motion between surfaces
What role does normal force play in relation to gravity?
It balances the downward pull of gravity.
What is normal force?
The force a surface exerts perpendicularly against an object