TO US 1

1. What is the mass of object P?

• 1.2 Kg

• 1.3 Kg

• 2.2 Kg

• 101.2 Kg

2. What are the units for weight and mass?

• weight – newtons; mass – kilograms

• weight – kilograms; mass – kilograms

• weight – kilograms; mass – newtons

• weight – newtons; mass – newtons

3. Which of the following statement is true?

• Renewable energy resources will run out one day.

• Renewable energy resources will not run out

• Non-renewable energy resources will not run out

• None of our energy resources will run out.

4. An iron of 300 W is use in 1 hour. What is the work done by the iron?

• 180 kJ

• 300 kJ

• 1080 kJ

• 1800 kJ

5. We have different seasons during the year because?

• there are 12 months in the year

• the Sun moves around the Earth

• the Moon moves around the Earth

• the Earth’s axis is tilted.

6. This graph shows motion of car. Based on the graph, what is the speed of car at section C-D?

• 10 m/s

• 20 m/s

• 30 m/s

• 60 m/s

7. Which trace shows the loudest sound?

• 
• 
• 
• 

8. What is the distance of the image produced by placing an object 6 cm away from a convex lens of focal length 3 cm?

• 3 cm

• 6 cm

• 12 cm

• 18 cm

9. Which pair of materials are both magnetic materials?

• silver and gold

• iron and plastic

• copper and steel

• iron and steel

10. The five blocks below are of equal size, but are made of different substances. The volume of each is exactly 10 cubic centimeters (10 cm³). The approximate mass of each is given. Which of the objects has least density?

• Glass

• Copper

• Iron

• Wood