Speed and Energy
A lot of energy.
What is transferred when object collide?
Energy.
What happens to a ping pong ball in a water tank?
It bobs up and down.
What are sound waves caused by?
Vibration.
What is our planets main source of light?
The sun.
An object moving ________ uses only a small amount of energy.
Slowly
When traveling the same speed, which will have more energy, a large object or a smaller object?
A large object. It has more mass, which is more energy.
Which is transferers in a wave, energy or matter?
Energy.
Name 2 mediums sound waves can travel through?
Air
Liquids
Solids
Name 2 examples of light producers.
Light bulbs.
Car headlights.
Outdoor fires.
Fireflies.
Flashlight.
Fireworks.
If you roll 2 balls the same size, one with more energy and one softly, what will happen?
The more energy will go faster, the soft one with less energy will move slower.
What happens when a moving object collides with another moving object?
Both objects change or stop direction.
What is amplitude of a wave?
Amplitude is the height of a wave from its base.
Do sound waves travel faster or slower underwater than they do in the air?
Sound waves travel 4.3 times faster underwater than they do in air, and they retain their energy for much longer.
Which light wave is a mirror?
a. Diffusion
b. Refraction
c. Reflection
C. reflection
When a bowling ball hits the pins, is that kinetic or potential energy?
Kinetic. It's MOVING energy.
Why might we hear a loud sound when 2 objects collide?
When 2 objects collide, energy is transferred and will cause sound energy and heat energy.
What is the distance between peaks called?
The wavelength.
Can sound waves travel in outer space?
No. There are no air particles to travel through.
Define transparent, translucent and opaque materials.
Transparent materials allow light to pass through, clear.
Translucent materials allow light to pass through but scatter it.
Opaque materials block light entirely preventing any light to pass.
Which will move more quickly, a ball at the top of a hill or a ball from the middle of the hill?
Ball at the top of the hill.
What happens when a moving ball collides with a non-moving object like a wall?
What is the difference between longitudinal wave and a transverse wave?
A longitudinal wave travels in one direction. (slinky)
A transverse wave moves up and down (towel shaking)
Why is sound important to marine animals?
Sound is crucial for marine animals, enabling communication, navigation and finding food.
When you see a blue car, what colors are repelled and what colors are absorbed?
Blue is reflected. All other colors are absorbed.