Year 10 SCi exams

Question 1

Force

Answer 1

A push or pull that changes shape, direction, or speed of an object measured in (N)

Question 2

Weight

Answer 2

The downward pull/ force of gravity that acts upon an object measured in Newtons (N)

Question 3

Mass

Answer 3

The amount of matter in an object measured in kg (in physics)

Question 4

Accelaration

Answer 4

The rate of change of speed in a given period of time measured in m/s/s

Question 5

Speed

Answer 5

The distance covered in a given amount of time

Question 6

Time measured in

Answer 6

Seconds

Question 7

Distance measured in

Answer 7

Meteres

Question 8

Current

Answer 8

The flow of charged particles

Question 9

Voltage

Answer 9

Is the potential difference of electrical energy between two points in a circuit.

Question 10

DNA

Answer 10

The molecule that carries genetic instructions

Question 11

Gene

Answer 11

The section of DNA that codes for a specific trait . `

Question 12

Allele

Answer 12

A different form of a gene

Question 13

Chromosome

Answer 13

Thread-like structures that contain long lengths of DNA

Question 14

Asexual Reproduction advantages

Answer 14

1. Produce quickly to outcompete other species
2. Only requires one parent to genetically contribute to an offspring.

Question 15

Sexual Reproduction advantages

Answer 15

1. Parents are genetically different to the child

Question 16

Friction

Answer 16

A force that opposes motion

Question 17

Net force

Answer 17

Overall force acting upon an object

Question 18

Net force paragraph

Answer 18

• Size and direction of force
• Net force of object
• If force is balanced/unbalanced
• Intial Movement
• Direction of net force compared to initial movement

Question 19

Compare and contrast mechanical vs chemical digestion?

Answer 19

MECHANICAL DIGESTION: Physical action of breaking food down into smaller parts through the action of the
teeth or churning of the stomach and intestines. CHEMICAL DIGESTION: The breaking down of large,
insoluble food particles into smaller, soluble particles through the use of acid and enzymes.

Question 20

Ion formation

Answer 20

• Ion definition
• Electron config of atom
• Gain or lose to achieve full valence shells
• New config of ion
• overall charge

Question 21

4 stages of digestion

Answer 21

Ingestion - the intake of food into the mouth (physical with chewing)
Digestion - the breaking down of insoluble food through enzymes and acids (chemical)
Absorption - The diffusion of nutrients from food into the bloodstream (chemical)
Excretion - The removal of waste and