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STEMazing Science Workshop Quiz 2

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

What is the SI unit for Pressure?

a)

Newton

b)

Watt

c)

Joule

d)

Pascal

2.

Weight is a force. TRUE or FALSE.

a)

True

b)

False

c)

Not sure

d)

None at above

3.

Acceleration, velocity and displacement are the examples of scalar quantities. TRUE or FALSE.

a)

True

b)

False

c)

Not sure

d)

None at above

4.

Kinetic energy is the energy of motion. TRUE of FALSE.

a)

False

b)

True

c)

Not sure

d)

None at above

5.

The area under the velocity-time graph means ____________ of the object.

a)

acceleration

b)

initial velocity

c)

distance

d)

maximum velocity

6.

Calculate the heat quantity required to raise a temperature of a mass of 30g of silver at 50°C to 60°C. Given the specific heat capacity of silver is 233 J/kg°C.

[1 kg = 1000g] [Q = mcθ]

a)

69.9 J

b)

69.9 kJ

c)

69900 J

d)

69900 kJ

7.

The heat quantity required to increase the temperature of m kg-silver at 50°C to 60°C is 69.9 J. What is the mass of the silver? Given the specific heat capacity of silver is 233 J/kg°C. [Q = mcθ]

a)

0.3 kg

b)

0.3 g

c)

30 kg

d)

3 g

8.

Density of an object is 2500 kg/m3. What is the relative density of the object when the density of water is 1000 kg/m3.

[Relative density = Density of substance/ density of water]

a)

2.5

b)

25

c)

0.25

d)

250

9.

Mass of 10 apples is 1.79 kg. What is the weight of 1 apple? [W=mg] [g = 9.81ms-2]

a)

1.76 N

b)

1.76 kg

c)

1.76 g

d)

1.76 ms-2

10.

Calculate the potential energy of a 60kg-young man who is standing on the ground.

[Ep= mgh] [g = 9.81 ms-2]

a)

0 J

b)

9.81 J

c)

588.6 J

d)

None at above