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Year 9 post A1

Last updated over 5 years ago

10 questions

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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.

What is the centre of an atom called?

Nucleus

Shell

Energy level

What is in the centre of an atom?

Protons and neutrons

Protons and electrons

Neutrons and electrons

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

23

92

46

How many chromosomes are there in sperm and egg cells

46

23

92

Name the part of the microscope you put your eye against

Objective lens

Eyepiece lens

Stage

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

Objective lens

Eyepiece lens

Stage

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

Active transport

Diffusion

Osmosis

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

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

Less than

The same

More than

An isotope has a different number of ....

Neutrons

Protons

Electrons