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Year 9 post A1

Last updated about 5 years ago

10 questions

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Question 1

1.

What is the centre of an atom called?

Nucleus

Shell

Energy level

Question 2

2.

What is in the centre of an atom?

Protons and neutrons

Protons and electrons

Neutrons and electrons

Question 3

3.

How many chromosomes are there in a 'normal' body cell?

23

92

46

Question 4

4.

How many chromosomes are there in sperm and egg cells

46

23

92

Question 5

5.

Name the part of the microscope you put your eye against

Objective lens

Eyepiece lens

Stage

Question 6

6.

Name the part of the microscope near the object/sample.

Objective lens

Eyepiece lens

Stage

Question 7

7.

What process does water use to move into a plant cell?

Active transport

Diffusion

Osmosis

Question 8

8.

If a device has 90J of energy going into it and 30J of wasted energy, how much useful energy does it have?

120J

60J

30J

Question 9

9.

Conservation of energy means that the energy at the end of a transfer is....... as at the beginning

Less than

The same

More than

Question 10

10.

An isotope has a different number of ....

Neutrons

Protons

Electrons