FORCES
GIVE 2 EXAMPLES OF A CONTACT FORCE
FRICTION, AIR RESISTANCE, PUSHING, PULLING
What is reflection?
Light bouncing off a surface.
Where are metals found on the table?
On the left and in the centre.
GIVE 5 EXAMPLES OF A INHERITED CHARACTERSITC
EYE COLOUR, HAIR COLOUR, SKIN COLOR, BLOOD GROUP
Give an example of a behavioural adaptation that an organism might have that helps it to survive.
hibernation, dancing to attract mates, fighting for its territory, hiding/storing its food
What unit is force measured in?
Newtons (N)
What is pitch?
How high or low a sound is.
How many electrons can an atom fit on the first shell and how many can it fit on the second shell?
2,8
WHERE IS DNA FOUND?
IN THE NUCLEUS
Name a non-contact force.
Gravity or magnetism.
What is friction?
A force that opposes motion/when two objects rub against each other
How do we hear sound?
Vibrations travel through the air to our ears.
What is a group in the periodic table?
A vertical column of elements with similar properties. / Same number of electrons on the outer shell
What is a gene?
A section of DNA that codes for a characteristic.
Predator
Explain what a balanced force is
When the two forces acting on an object have the same strength/magnitude
Why does sound travel slower than light?
Sound needs particles to travel; light doesn't.
What three things make up the fire triangle
oxygen, fuel, heat
What is a producer in a food chain?
An organism that makes its own food (like a plant).
Bending of light as it changes speed through different materials.
Describe how a parachute works using forces.
Air resistance slows descent; weight pulls down; parachute increases air resistance.
Sound is an example of a _______ wave and light is an example of a _______ wave
longitudinal, transverse
What happens in a thermal decomposition reaction?
One substance breaks down when heated.
How does energy move through a food web?
Energy flows from producers to consumers when they eat each other, and decreases at each stage.
What is the word equation for burning magnesium? (hint: remember what gas is needed for burning to occur)
magnesium + oxygen --> magnesium oxide