There are two types of forces...
contact and non-contact forces
Push and pull forces are...This means one object or person moves another by touching it.
Contact forces
The finger applies a force to the marble...
contact force
Push and pull forces are...This means they move objects without touching them.
non-contact force
The two forces applied to the table are opposite and equal.
Balanced forces
The two opposite forces applied to the table are not equal.
Unbalanced forces
Unbalanced forces examples...
push and pull force speed up the wing, chocolate breaks, a push force stops the ball...
Magnets have a force called....This can be a... force....... is a..... force because a magnet moves an object.......
Magnetism, push or pull, non-contact force, without touching it.
Because of magnetism...
the boy can't push the magnets together, the nails move towards the magnet. the fridge magnet stays on the door.
Magnets create a....around them. We cannot see these forces but they....objects made of......
magnetic field, iron and steel.
Opposite poles of a magnet...
attract
Some poles of a magnet...
repel
Gravity...
is a non-contact force that pulls towards the centre of objects. This force is only noticeable with very large objects.
Because of gravity...
we stay on the ground, every thing that goes up comes back down.
Big objects has a....pull towards their centre than...objects.The Earth has a....pull on the Moon that the Moon has on the Earth.
stronger, smaller, stronger.
Mass...
is the amount of matter in an object. It's measured in kilograms (kg).
