Vocabulary
Physical property of being magnetic is....
Magnetism
If I roll a ball on cement it rolls 10 ft.
If I roll a ball on carpet it rolls 5 ft.
If I roll a ball on grass it rolls 3 ft.
Why does the ball roll different lengths?
Friction from different surfaces causes the ball to slow down.
Open ended question...
Why do we not float around in the air like we would on the moon?
Gravity
If I point a South pole side of a magnet to another South pole what will happen?
If your water bottle is sitting across the table from you what force might you use to bring it towards you?
Pull
A push or a pull
Force
If I pushed a ball across a wood floor and then again across carpet which flooring would allow the ball to roll farther? Why?
Wood floor, it has less fricion
Looking at an apple tree why are there apples on the ground?
Gravity pulled them down
If I point a North pole side of a magnet to a South side of a magnet what would happen?
The magnets would attract
When you go swimming you use your hands to do what to the water? (it's a type of force)
push
A force between two touching objects.
Contact Force
If I wanted to measure friction between rolling toy cars across different surfaces (grass, carpet and cement) what tools would I need to measure it?
A beaker and safety goggles
A thermometer and a rubberband
A stopwatch and a meter stick
A ruler and a scale
stopwatch and a meter stick
Renee is throwing a ball high into the air and then catching it. What is the effect of gravity on the ball? (choose one)
It increases the mass of the ball.
It pulls the ball back to the ground.
It makes the ball’s speed slow down.
It makes the ball’s speed remain constant.
It pulls the ball back to the ground.
Choose two materials below that are magnetic.
Rubber
Iron
Wood
Plastic
Metal
Iron and metal
What is the appropriate level to walk on in the hallway?
LEVEL 0
The force that acts to pull all objects down to Earth is....
Gravity
What does friction do?
Causes an object to slow down or stop
A boy uses a rope to pull a box across the ground.What is the effect of gravity and friction on the box?
Gravity is pulling the box down and friction is working against the boy pulling the box (slowing it down).
If I had a bucket filled with: shredded paper, rubberbands, paperclips, yarn, pencils and water. How could I get the paperclips out besides using my hands to pull them out?
Using a magnet
If you go to open a door what is a force you might use?
push or pull
A force that acts against the direction of an object’s motion and causes it to slow or stop is...
Friction
Jared wants to test the effect of friction on an object. Which would be the best experiment for him to test this effect? (choose one)
Use a pulley to lift several blocks.
Drop a ball from different heights.
Roll a toy car across different surfaces.
Use a balance to find the mass of objects
Roll a toy car across different surfaces.
Ms.Hughes balances an egg on top of a handmade tower, but one of her students runs by and knocks the tower over. What happens to the egg? Why?
The egg falls down and cracks because gravity was pulling it down.
What is the magnetic field?
If I rode my bike down a ramp what forces are occurring?
Pick 3 and tell me why
Magnetism
Push
Pull
Friction
Gravity
Push - Im pushing the pedals to move forward
Gravity - Im being pulled back down to the ground
Friction - The tires creating friction on the ramp or pulling the brakes to slow down