Revision for AC2

• Science
• Lower Secondary (Key Stage 3)

Revision for AC2

What does the caterpillar eat?

1. Treecreeper
2. Hawk
3. Oak tree leaves
4. It is green and can photosynthesis

What do producers do in a food chain?

1. They make their own food through photosynthesis
2. They hunt for prey
3. They consume other organisms for energy
4. They build shelters for other animals

What role do decomposers play in a food chain?

1. They break down dead organisms and waste materials
2. They produce food through photosynthesis
3. They hunt for prey
4. They consume other organisms for energy

Which organism in this food chain is the producer?

1. Hawk
2. Tree creeper
3. Caterpillar
4. Oak Tree leaves

Which organism in this food chain is the primary consumer?

1. Hawk
2. Tree creeper
3. Caterpillar
4. Oak Tree leaves

Which organism in this food chain is the predator/ tertiary consumer?

1. Hawk
2. Tree creeper
3. Caterpillar
4. Oak Tree leaves

What starts the food chain by absorbing sunlight?

1. Phytoplankton
2. Zooplankton
3. Small fish
4. Mackerel

What is consumed by the mahi mahi?

1. Phytoplankton
2. Zooplankton
3. Small fish
4. Mackerel

What is consumed by the mackerel?

1. Phytoplankton
2. Zooplankton
3. Small fish
4. Mackerel

What is consumed by the shark?

1. Mackerel
2. Mahi Mahi
3. Small fish
4. Mackerel

Which organism is the producer?

1. Mackerel
2. Zoo plankton
3. Small fish
4. Phytoplankton

Which organism is the primary consumer?

1. Mackerel
2. Zoo plankton
3. Small fish
4. Phytoplankton

Which spoon will feel the hottest the quickest?

1. Silver metal spoon
2. Brown wooden spoon
3. Red plastic spoon
4. None of them

What is an example of conduction?

1. Heat rising from a radiator.
2. Touching a hot pan and feeling the heat.
3. Air circulating in a room.
4. Steam rising from a boiling pot.

For every hour spent conducting an interview, how much time is spent transcribing it?

1. 5 hours
2. 8 hours
3. 10 hours
4. 12 hours

Which of the following materials has the highest conductivity?

1. Glass
2. Copper
3. Rubber
4. Wood

Which of the following is an example of conduction?

1. Heat rising from a campfire
2. Steam rising from a cup of coffee
3. Touching a metal spoon that was in hot soup.
4. Water boiling in a kettle

Which statement best describes conduction?

1. It occurs in solids, liquids, and gases.
2. It only occurs in liquids
3. It only occurs in solids
4. It only occurs in gases

What is the resultant force on this object ?

1. 7N left
2. 3N left
3. 7N right
4. 3N right

What is the resultant force on this object ?

1. 6N left
2. 2N left
3. 8N right
4. 6N right

What is the resultant force on this object ?

1. 5N left
2. 10N left
3. 0N
4. 800N up

What is the resultant force when two forces of 5N and 8N act in the same direction?

1. 15N
2. 3N
3. 13N
4. 10N

If a 15N force acts to the right and a 10N force acts to the left, what is the resultant force?

1. 25N to the right
2. 5N to the left
3. 5N to the right
4. 15N to the right

What are the units for gravitational potential energy?

1. newtons
2. joules
3. meters
4. seconds

How does gravitational potential energy change with height?

1. fluctuates
2. remains constant
3. increases
4. decreases

What factors affect gravitational potential energy?

1. mass, gravity, height
2. velocity, time, area
3. force, distance, displacement
4. density, temperature, pressure

Match the energy stores to the descriptions.

The energy stored in hot objects.

The energy stored in objects that are stretched or compressed.

The energy stored in moving objects.

The energy stored in objects above the ground.

The energy stored in food, fuels and batteries.

Kinetic

Chemical

Thermal

Elastic

Gravitational potential

Energy is transferred from the                          energy store of the battery to the radio by                         . The radio then transfers the energy by                         waves.

Energy within the                         energy store of your moving fingers is transferred to the                        energy store of a rubber band by                        .                

chemical

electricity

sound

kinetic

elastic

force

energy

energy

from

to

transferred

exothermic

surroundings

endothermic

Complete the table.

Chemical energy store

Elastic potential energy store

Gravitational potential energy store

Kinetic energy store

Objects moving fast

Hot objects

Stretched or compressed objects

Wood and coal

A rock on a cliff

Boiling water

Label the energy store that is being transferred from and to.

Thermal

Kinetic

Chemical

Gravitational potential

Elastic potential

Label the energy store that is being transferred from and to.

Thermal

Kinetic

Chemical

Gravitational potential

Elastic potential

Label the energy store that is being transferred from and to.

Thermal

Kinetic

Chemical

Gravitational potential

Elastic potential