Log in
Sign up for FREE
arrow_back
Library
year 7 Science Homework Week 3
By Naomi Arthur
star
star
star
star
star
Share
share
Last updated over 4 years ago
21 questions
Add this activity
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Question 1
1.
Question 2
2.
Question 3
3.
Question 4
4.
Question 5
5.
Question 6
6.
Question 7
7.
Question 8
8.
Question 9
9.
Question 10
10.
Question 11
11.
Question 12
12.
Question 13
13.
Question 14
14.
Question 15
15.
Question 16
16.
Question 17
17.
Question 18
18.
Question 19
19.
Question 20
20.
Question 21
21.
How do we convert from cm to m?
÷ by 100
X by 100
÷ by 1000
How do we convert from m to cm?
÷ by 100
X by 100
÷ by 1000
How do we convert from m to km?
÷ by 100
X by 1000
÷ by 1000
How do we convert from km to m?
÷ by 100
X by 1000
÷ by 1000
How do we convert from cm to mm?
÷ by 100
X by 1000
x by 10
How do we convert from mm to cm?
÷ by 10
X by 1000
÷ by 10
How do we convert from mm to µm?
÷ by 10
X by 1000
÷ by 1000
The particles in a solid are:
Completely still and never moving
Always vibrating slightly around a fixed point
Sometimes vibrating slightly and can change position
The particles in a solid are:
Stuck together by strong forces
Held together by weak forces
Held together by strong forces
The particles in a solid are:
Very far apart
Very close together
some touching some not
The particles in a solid:
Cannot be compressed (squashed) because there is very little space between particles
Can be compressed (squashed) because there is some space between particles
Can be compressed (squashed) because there is some space between particles
The particles in a liquid are:
Held together by the same strength forces as between particles in a solid
Held together by weaker forces than between particles in a solid
Held together by stronger forces than between particles in a solid
The particles in a liquid:
Stay in a fixed position
Can slide over each other
Can move in all directions randomly
The particles in a liquid:
Cannot be compressed (squashed) because there is very little space between particles
Can be compressed (squashed) because there is some space between particles
Can be compressed (squashed) because there is some space between particles
The particles in a gas are:
Held together by the same strength forces as between particles in a solid or a liquid
Held together by very weak forces
Held together by no forces
The particles in a gas:
Cannot be compressed (squashed) because there is very little space between particles
Can be compressed (squashed) because there is lots of space between particles
Can be compressed (squashed) the particles can be pushed and made smaller
In which state of matter do the particles have the most kinetic energy?
Solids
Liquids
Gases
In which state of matter do the particles have the weakest forces between them so they are able to move further apart?
Solids
Liquids
Gases
What will cause particles to gain more kinetic energy and the forces between them to get weaker?
Increase in temperature
Decrease in temperature
No change in temperature
During melting:
The temperature increases and the particles gain more kinetic energy, the forces between them get weaker and they can slide over each other.
The temperature decreases and the particles gain more kinetic energy, the forces between them get weaker and they can slide over each other.
The temperature increases and the particles lose kinetic energy, the forces between them get weaker and they can slide over each other.
During freezing:
The temperature increases and the particles gain more kinetic energy, the forces between them get weaker and they form a regular arrangement
The temperature decreases and the particles lose kinetic energy, the forces between them get stronger and they form a regular arrangement
The temperature decreases and the particles lose kinetic energy, the forces between them get weaker and they can slide over each other.