Summer Rivision

Question 1

What are the planets

In Oder

Answer 1

Mercury, Venus , earth, mars , Jupiter , Saturn, Uranus , Neptune
(Mad Vampires Eat Mangos (and )Jump Straight Up Noses

Question 2

How do the planets orbit the sun over the years ?

Answer 2

The sun is really huge it has a big mass so it’s gravity is really strong . The pull form the Sun’s gravity is what keeps all the planets in their orbits . The plants all move in elliptical orbits

Question 3

What is the difference between weight and mass?

Answer 3

“Mass “tells you how much matter makes up an object it is mesured in kg . and does not change on different planets.
“Weight” weight is the force of gravity acting on an object . Measured in Newton . It depends on :
- mass of the object
- the strength of gravity

Question 4

Air resistance

Answer 4

Pushes against objects which are moving through the air

It is a kind of frictional force because it tries to slow objects down

Question 5

Friction

Answer 5

It tries to stop things sliding past each other 
The pros ✅ 
-allows you to start and stop 🛑 
Cons ❌
-slows you down 🚘 ✋

Question 6

What are the different types of energy ?

Answer 6

Kinetic energy,sound,thermal energy, light 💡,electrical energy,
Chemical energy , gravitational energy, nuclear energy, elastic potential energy