Vocabulary
a push or a pull
force
How does the strength of the force affect the motion of the object?
The greater the force, the further the object will travel.
The greater the force, the faster the object will travel.
Does an ice-skating rink have high friction or low friction?
low friction
On a magnet, where is the force of magnetism the strongest?
at the poles
What is an example of static electricity?
getting a shock from another person, lightning, clothes sticking to each other when they come out of the dryer
the change of an object's position
motion
Describe a tug of war scenario that would represent balanced forces.
There would be equal forces on each side and the ribbon on the rope would not move.
Which has a greater level of friction--rubber shelf liner or parchment paper?
rubber shelf liner
Name two types of magnets that we learned about during our magnets lesson.
bar magnets, disc magnets, horseshoe magnets, mighty magnet
If you rub a balloon against your hair and then hold the balloon near your head, what will happen?
Your hair will be attracted to the balloon, and it will try to stick to the balloon.
Particles with a negative charge
Electrons
If the forces are unbalanced during a game of tug of war, the rope will move in the direction of __________________________________.
the greatest force
Friction is a force that opposes the motion between _________________________________________.
two surfaces that touch
Magnets are made mostly of __________________.
iron
True or False?
Static electricity involves negatively charged particles jumping to positively charged objects.
True
the force that attracts objects toward the earth
gravity
Pushing a box across the floor is using what kind of force to cause motion?
Friction
Why is it easier to pull a wagon on the sidewalk than on the grass?
The sidewalk is smooth and has less friction.
Name one way that magnets help us in real life.
Answers will vary (MRIs, recycling)
Static electricity is an imbalance of _________________________________ within or on the surface of a material.
electric charges
to push away
repel
A marble will speed up as it rolls down a ramp. The force pulling it down is called?
Gravity
How does friction affect an object's motion?
The greater the friction, the slower the object will move.
How could you make two magnets repel each other?
by placing their like poles near each other
If you rubbed two balloons on a piece of fabric and then put them close to each other, would they be attracted to each other? Why or why not?
They would not be attracted to each other because they would each have the same type of charge.