Physical science

Which one is not a scalar Quantity?

• Distance

• Mass

• Density

• Velocity

The centre of gravity of each object is labelled M. Which is not in equilibrium and will therefore fall over?

• A

• B

• C

• D

A parallel circuit is set up using 3 similar lightbulbs as shown in the diagram. If the ammeter reading of A3 is 0.2 A, what is the reading of Ammeter A1 is _________ A

• 0.1 A

• 0.2 A

• 0.4 A

• 0.6 A

A student placed a pencil in a cup of water. The pencil appears broken because light_________________.

• always travels in a straight line

• makes the water in the glass evaporate

• bends when it passes through water

• reflects the pencil on the water's surface

If a box has a weight of 80N and exerts a pressure of 1.2N/cm2 on a table. What area of the box is in contact with the table?

• 70.2cm2

• 67.2cm2

• 64cm2

• 66.7cm2

Josie partially filled a graduated cylinder with water. She then dropped a rock into the water. The illustration below shows what happened to the level of the water inside the graduated cylinder. Which property of matter is Josie measuring?

• Mass
• Length
• Weight 
• Volume

What is the correct equation for calculating the pressure that an object exerts on something?

• pressure = force ÷ area

• pressure = force + area

• pressure = area ÷ force

• pressure = force x area

The moment created on a crane is 200,000Nm. The force being lifted is 50,000N. What is the distance between the crane's pivot and the weight being lifted?

• 10m

• 6m

• 4m

• 5m