Predicted

Question 1

Describe what happens when two light poles of a magnet are brought together

Answer 1

They will repel because of force is exerted

Question 2

Suggest how seismic waves can give us information about the earths core

Answer 2

How do you spell altered by the density of a solid state
Where is can be reflected, reflected and change speed
Time of detection

Question 3

Varying force on an object affect the acceleration. How does this work?

Answer 3

Add different weights to the weights that changes the force

Question 4

How is the mass controlled, and the variable kept constant?

Answer 4

Total mass of car, weight and weight must be consistent
So when you remove it from the start, he must put it on top of the block

Question 5

Compare the properties of radio waves and gamma rays?

Answer 5

both transverse waves
They travel at the same speed in a vacuum
Radio waves have a lower frequency than gamma
Gamma is a short wave length
X-rays are long wavelength

Question 6

Describe the image formed through convex lens?

Answer 6

Virtual or real
Parallel light rays
Focus is at a principal point

Question 7

What is the movement of a bead on a string wave?

Answer 7

Move up and down, but not horizontal

Question 8

Describe the structure of the solar system

Answer 8

The Sun is in the centre
Eight planets orbiting it
Dwarf planets
Moons orbit planets

Question 9

How do you know that our son is a second star generation?

Answer 9

Heavy elements are present
Heavy elements are only made during a supernova
Fusion occurs inside the star

Question 10

How is visible, light scattered?

Answer 10

Reflection and rough surfaces

Question 11

What is a perfect white body?

Answer 11

Objects that absorb all wavelengths appear black
Objects that reflect wavelengths appear white
-poor absorber
-poor emitter
-Best reflectors