Yr 10 HY

Chemistry 1

100

What type of reaction is shown?

^{Hydrochloric acid + Sodium hydroxide --> Sodium chloride + Water}

_{NEU___________________}

NEUTRALISATION

200

The formation of new compounds occurs when 

atoms rea_________________

atoms rearrange

300

Name of the indicator that appears RED in ACID and BLUE in an ALKALI/BASE.

L__________ paper

LITMUS PAPER

400

Aluminium (Mg ⁺³)

Chlorine (Cl ^-1)

Al ⁺³   Cl ^-1        How many chlorine ions is required? 

Al ⁺³   3 Cl ^-1       How many chlorine ions is required? 

                                     3 chlorine atoms

500

HCl + Na₂CO₃  --> NaCl + CO₂ + H₂O

Identify the gas produced when an ACID and CARBONATE react.

Carbon dioxide

CO₂

Physics 1

100

--100N --> (car) <--100N--

Indicate if the car is moving or stationary.

The car is stationary as the forces are equal yet opposite so they cancel out. 

200

Calculate the average speed.  

The TOTAL distance was 340km which was covered in 12 hours.

340km /12 hours

28km /hour

300

Calculate the average velocity.  

The displacement was 140km N which was covered in 12 hours.

= 140km/12 hours

= 11.67

= 11 hours 40 minutes North

400

Calculate the acceleration for a car if its speed increases by 50m/s over a period of 5 seconds.

Acceleration = speed/time

Acceleration = 50 / 5

Acceleration = 10 m/s/s     or    10 m.s^-2

500

The area of a SPEED vs TIME GRAPH gives the DISPLACEMENT. 

If the speed is 20m/s and the time is 6 s. Calculate the displacement. 

Area = 20 x 6

Area = 120m

Area = Displacement

Displacement = 120m

Random

100

Which of the following is an example of a molecule

Na⁺¹  Cl ^-1

H₂O

Cu⁺² O^-2

H₂O

200

Two designs of paper planes are thrown once and the distance covered is measured. 

How can we improve the reliability of this experiment?

Repeat the experiment.

300

Two designs of paper planes are thrown once and the distance covered is measured. 

Identify two factors that need to be constant /controlled?

Type of paper

Size of paper

Planes thrown by the same person

Planes thrown in the same environment

400

Air from a deflating balloon which is moving through the air is an example of 

Newtons ________ Law

Newtons THIRD Law

Every action has an equal yet opposite force. 

The gas released from a deflating balloon causes it to move. The balloon moves forward in the opposite direction to the gas.

500

Identify the parts of a scientific report;

Ai___

Hyp________

Met__________

Re__________

Con_________

Aim

Hypothesis

Method

Results

Conclusion

Chemistry 2

100

Exothermic reactions RELEASE or ABSORB energy.

Exothermic reactions RELEASE energy.

200

Name given to the type of reaction that occurs when an INSOLUBLE SOLID forms as a product. 

PREC______________--

PRECIPITATION

300

Ignition of wood is an example of a 

CO____________ reaction

COMBUSTION REACTION 

400

Magnesium (Mg ⁺²)

Chlorine (Cl ^-1)

Mg ⁺²   Cl ^-1        How many chlorine ions is required? 

Mg ⁺²   2Cl ^-1        

How many chlorine ions is required? 

                                                    ^{2 chlorine ions}

500

Give the name for the process that occurs when ELECTRICITY passes through WATER to form 

HYDROGEN GAS (H₂) AND OXYGEN GAS (O₂).

ELECTROLYSIS

Physics 2

100

--100N --> (car) <--500N--

Indicate if the car is moving or stationary.

The car is moving to the LEFT.

200

The formula for SPEED = di_______/________

SPEED = DISTANCE/TIME

300

Calculate the FORCE applied to a car with a

MASS = 1000kg

ACCELERATION = 50 m/s

FORCE = MASS x ACCELERATION

FORCE = MASS X ACCELERATION

FORCE = 1000 x 50

FORCE = 50 000N

400

FORCE = MASS X ACCELERATION

A mass of 20kg experiences a force of 300N. 

Calculate the acceleration.

ACCELERATION = FORCE / MASS

Acceleration = 300/20

= 15 m/s

500

Calculate the acceleration for a car if its speed increases by 100m/s over a period of 20 seconds.

Acceleration = speed / time

Acceleration = 100/20

Acceleration = 5 m/s/s       5m.s^-2