Forms of Energy
Science Matters
Our Place in Space
Forces
100
What do plants require to perform photosynthesis?
Carbon dioxide, water and presence of light
100
Which of these is/are non-matter?
Water, Dream, Oxygen, Shadow, Helium
Dream and shadow
100
Which of these rotates to create days and nights?
The Earth
100
Which object has a greater amount of gravitational force acting on it - the car at the bottom of a mountain or the car at the top of a mountain?
The same amount of gravitational force is acting on both cars.
200
What is produced through respiration?
Carbon dioxide, water and energy
200
What is the state of a plasticine as it changes its shape when it is pressed.
Solid
200
What are objects that orbit the sun called?
Planets
200
Why is it easier to slide your feet across ice than it is to slide them across gravel?
Less Gravity, More Gravity, Less Friction or More Friction
Less Friction
300
Why is limewater is used in experiment?
To test the presence of carbon dioxide.
300
What are the properties of the orange juice when we state that orange juice cannot be compressed?
Definite/Fixed volume
300
How long does it take the earth to orbit the sun?
One year.
300
When a spring is extended, how does it affect the amount of elastic spring force exerted by the spring?
Same, longer, decrease, increase?
Increase
400
List the conversion of energy in a closed circuit.
Chemical Potential Energy [Battery] -> Electrical Energy [in electrical circuit] -> Heat + Light [Light bulb]
400
What is the name of the gas during boiling? Is boiling heat gain or heat loss?
steam, heat gain
400
Which of the following makes Earth different from all other planets?
Coldest planet, Warmest Planet or has bodies of water on the surface
Bodies of water on the surface
400
How does it affect the gravitational force acting on an object when the object moves further away from the Earth?
- Increases, Decreases, Remain the same
Decreases
500
What are the factors that affect the amount of kinetic energy and the amount of gravitational potential energy?
Kinetic Energy: Speed and Mass
Gravitational Potential Energy: Height and Mass
500
Which phases of matter will change shape but not size?
Liquid
500
When launching a water rocket, how much water would make the rocket shoot highest?
- Less
- More
- It doesn't matter
- Half Full
The correct answer is Less. The less water added to the rocket the higher it will go. If we had a lot of water, it would be adding too much mass.
500
Which instrument is used to measure the mass of an object, and to measure the force of an object?
Mass of object: Electronic balance, beam balance
Force of object: Spring balance