Forces Basics
What force pulls objects toward the ground?
Gravity
Name a surface that creates high friction.
Examples include sandpaper, carpet, or rough concrete.
What is the invisible area around a magnet called?
Magnetic field.
What force opposes gravity when a parachute is used?
Air resistance (drag).
What is a force?
A push or pull that can cause an object to move, stop, or change direction.
What happens to an object when friction is low?
It moves faster or keeps moving with less resistance.
True or False: Magnets can attract all metals.
False. Magnets attract only specific metals like iron, nickel, and cobalt.
Which shape creates the most air resistance: a ball, a flat sheet, or a cone?
A flat sheet.
Name one example of a force you use in everyday life.
Examples include pushing a door, pulling a drawer, or gravity keeping you on the ground.
What type of energy is created by friction when rubbing your hands together?
Heat energy.
What happens when two north poles of a magnet are brought together?
They repel each other.
True or False: Gravity affects all objects the same, regardless of their weight.
True. Gravity pulls all objects equally, though air resistance may vary.
True or False: All forces are visible.
False. Forces like gravity and magnetism are invisible.
True or False: Friction is always a bad thing.
False. Friction can help, such as when preventing slips or stopping vehicles.
Name one everyday object that uses magnets.
Examples include fridge magnets, compasses, or headphones.
Why do astronauts seem to float in space?
They are in free fall, pulled by gravity but moving forward fast enough to stay in orbit.
What are two ways a force can change the motion of an object?
A force can speed up, slow down, or change the direction of an object.
What surface would allow an object to travel further: ice or grass? Why?
Ice, because it has lower friction compared to grass.
What happens to a magnet’s force as the distance from it increases?
The force decreases.
What happens to an object’s air resistance as its speed increases?
Air resistance increases as speed increases.