Show:
Force
Simple Machines
Sound & Light
Electrical
Hodgepodge
100
What types of materials are attracted to a magnet?
metals
100
How many parts does a simple machine have?
One
100
What causes sound?
Vibrations
100
What are the 2 types of circuits?
Series and Parallel
100
What is the energy of motion called?
Kinetic
200
What force pulls objects towards the Earth?
Gravity
200
2 or more machines together make up this kind of machine
a compound machine
200
Light that bounces off of a mirror is doing what?
Reflecting Reflection
200
What happens to a light bulb if there is a break or gap in the circuit?
The light turns off
200
What is the main source of energy on earth?
The Sun
300
This force causes objects to slow down, speed up, or creates heat.
Friction
300
Name 4 simple machines.
lever, gear, screw, wheel & axle, wedge, inclined plane, pulley
300
Light that bends when it goes through a material like water is called ________
Refraction
300
What type of a circuit allows you to turn one light bulb off while the other one stays lit?
A Parallel Circuit
300
What is the best heat conductor?
metal and glass
400
What kind of force is equal in strength and opposite in direction? Neither object is moving.
Balanced Force
400
This machine is sometimes called a ramp.
An inclined plane
400
Sound travels in _______________
Waves
400
Name 3 types of energy you can create with an electrical circuit.
Kinetic, electrical, light, sound, heat, mechanical
400
What causes a rainbow to form?
Light bends when it goes through water droplets in the air.
500
Which object would need the most force to move it 2 meters? Explain why. a tennis ball, a bicycle, a car or a bus
A bus because it has the most mass
500
This simple machine has a grooved wheel and a rope. You pull down on the rope to lift the weight.
A Pulley
500
Why does light bend when it goes from one material to another?
Because it slows down
500
What 2 types of energy can be found in a battery before it is connected to a circuit?
Potential and Chemical
500
Why do they put plastic or wood on handles and lids of saucepans?
Because they are insulators and you won't get burned when you touch it.