FORCES
A force is a _____ or a ______.
Push or a pull.
TRUE OR FALSE: Balanced forces do not cause a change in motion.
TRUE
Give one example of a pattern of motion.
[any correct answer]
Like poles do what? Unlike poles do what?
Like poles = repel
Unlike poles = attract
A lightning strike.
What force pulls everything down toward Earth?
Gravity.
TRUE OR FALSE: Unbalanced forces cause a change in motion.
TRUE
If a ball rolls down a hill, what pattern of motion is it showing?
Motion in a line.
True or False: Magnets can attract all kinds of metal.
False (only some metals, like iron, nickel, cobalt).
What does an imbalance of charge cause?
Static electricity.
Give one example of a pulling force.
[any correct answers apply]
In tug-of-war, if one team is pulling with more strength than another, the forces are ___________.
unbalanced
Kicking a soccer ball is an example of which pattern of motion?
motion in a line
Where are magnetic forces strongest on a bar magnet?
What kinds of charge do two objects need to stick together?
Opposite charges.
Motion is a change in the ________ of an object.
position
What happens when two forces push an object in the same direction?
They become a stronger force in that direction because forces add together.
To predict how an object will move means to use what you know to...
...tell what might happen to the object in the future
Give one property of an electromagnet.
✅ It can attract iron and steel objects.
✅ It can be turned on and off.
✅ It is a type of temporary magnet.
✅ Its strength can be changed by changing the electric current.
✅ It only works when electricity flows through it.
You take laundry out of the dryer and notice some of the dry clothes stick together. Why do the socks stick together?
_________ is which way an object moves.
direction
What happens if two people push on a box with the same strength but in opposite directions?
The box does not move (balanced forces).
Why can we predict what happens to objects?
Because patterns repeat and we can use what we already know.
What happens when you cut a bar magnet in half?
You get two smaller magnets, each with a north and south pole.
Why does your hair stand up when you rub a balloon on it?
Because of static electricity — the charges are unbalanced.