Magnets
If 2 magnets are pushing apart, label on your whiteboard which ends are North (N) and South (S)
The like poles (N-N or S-S repel each other)
Which cart would have the most energy if we let go of it? At the TOP of the ramp or the BOTTOM?
The cart at the top, because it has more energy to move down the ramp and gain momentum.
A toy car is rolling on a track. If you add more blocks on top of the car, what happens to the distance traveled?
The more blocks, the longer the distance it travels
Yes or No: Is a parachute pushing down on a human
No
A student needs to find out how far a cart rolled off a ramp. What tool would she use to measure the distance?
Meter tape
If 2 magnets are sticking together, label on your whiteboard which ends are North (N) and South (S).
Opposites poles attract each other (N-S or S-N)
If we want to see how far a baseball, basketball and tennis ball roll down a ramp, what are some things we should do to make a fair experiment?
1. Test each ball separately
2. Try more than one time
3. Start balls from different spots on the ramp
Bob pushes a table with 400 units of force. Jim pushes the table on the other side towards Bob, but the table doesn't move. How many units of force does Jim use?
500 Units of force, because the forces are equal and the table does not move.
Yes or No: is a parachute pulling up on a human?
Yes
A student is measuring the length of a tiny magnet. Which unit should she use: centimeters, meters, kilograms.
Centimeters
When all of the magnets sitting through a pencil are apart (not touching each other/floating), is that balanced or unbalanced?
Hint: not moving
Balanced, because the forces are equal and nothing is moving
A ball is rolling down a ramp. At which part does it pick up the most speed? (the TOP, MIDDLE, or BOTTOM of the ramp)
BOTTOM, because gravity pulls it down and makes it go faster.
Scientists are making a parachute to jump out of an airplane. How should they design it so it works the best?
They need to design it so it falls slowly to the ground.
Yes or No: Air resistance pulls down on a parachute?
No
A student needs to add water to a cup for an experiment. What tool would she use to measure and move the water?
A syringe
What forces are acting on a magnet when it is hanging down?
What forces are acting when it is being pulled towards another magnet?
Gravity pulls down
Magnetic force pulls it toward the other magnet
Why does a ball go faster when it rolls down a ramp instead of just sliding on the flat floor?
The ramp makes it go down with gravity, giving it more speed while moving down the ramp.
They time how long each one takes to fall.
Yes or No: Air resistance is pushing up on a parachute?
Yes
A student is measuring the mass of sand in water. What tool would she use to weigh it, and what small pieces help her measure?
A balance and grams