Please answer with explanation:

1. If we have a new moon today, when will we have the next full moon?

a. In about 1 week

b.In about 2 weeks

c.In about a month

d. In about 6 months

2. What is true about aristotle's theory of motion?

1. Objects fall faster in air than water
2. The fall of heavy object toward the center of the earth is a violent motion
3. The increase in the rate of motion is inversely proportional to the weight of the weight of the object
4. The object will continue to move even without an external force applied

3. What is the belief of galileo in an object in uniform motion?

1. An object in uniform motion will travel a distance that is proportional to acceleration
2. An object in uniform motion will travel a distance that is proportional to motion
3. An object in uniform motion will travel a distance that is proportional to speed
4. An object in uniform motion will travel a distance that is proportional to time

4. A rolling ball was found to pick up a speed of 2mins every second. What will be its speed after 5 s if it is started with Cm/s at Cs?

1. 25m/s b. 8m/s c. 10m/s d. 15m/s

5. What is galileo's concept of falling objects in his experimentation?

1. Object falling with changing acceleration
2. Object falling with changing direction
3. Object falling with uniform acceleration
4. Object falling with changing speed

6.. A piece of paper is at rest on your desk. Which of the following statements best describes the situation?

1. There are no forces acting on the paper
2. The paper pushes on the desk only
3. The desk pushes on the paper only
4. The forces acting on the paper are balanced

7. When a balloon held between the hands is pressed, its shape changes. This happens because:

1. Balanced forces act on the balloon
2. Unbalanced forces act on the balloon
3. Frictional forces act on the balloon
4. Gravitational force acts on the balloon

8. Which of the following must remain unchanged to have a constant velocity for an object in motion?

1. Speed only
2. Friction and speed only
3. Speed and mass only
4. Speed and direction of travel

9. Light waves bump mixtures of particles in the air upon their propagation. Which among the following statements is true when this happens?

1. Small particles in the air scatter blue waves most so will see the sky as blue
2. Big particulates in the air scatter blue waves most so we see the sky as white and blue
3. Light waves with longer wavelengths are scattered the most so we see the sky as blue
4. Red waves are scattered more by small particles in the air so we see red color during sunset

10. The following are characteristics of protons except

1. It can interact with other particles like electrons
2. It can carry energy and momentum
3. It has most energy
4. It has a mass equal to 1.67 x 10 kg

11. Which of the following statements is true when the frequency of electromagnetic radiation decreases?

1. Its wavelength also decreases
2. Its energy also decreases
3. Its energy increases
4. Its wavelength increases
5. I only b. II only c. I and III only d. II and IV only

12. What does the dark image binge patterns of light wave on the screen in double slit experiment show?

1. Destructive interference
2. Reflected interference
3. Constructive interference
4. Diffracted interference

13. Why is the spectrum of light separated into the components of solar when while light is directed to a prism?

1. The different colors in the white light bend away from the normal line at different angles when entering prism ingestion
2. The different colors in the white light bend towards the normal line at different angles when entering prism
3. The different colors in the white light bend away from the normal at same speed to each other when entering prism
4. The different colors in the white light bend towards the normal at same speed to each other when entering prism

14. Why does scattering of light occur?

1. Light rays are blocked and reflected to all directions by the clouds or particles in the air
2. Light rays are passing through and refracted to all directions by the clouds or particles in the air
3. Light rays are blocked and refracted to all directions by the clouds or particles in the air
4. Light rays are passing through and are dispersed by raindrops acting as multiple prisms

15. Wave interference can occur in the following except:

1. Two rocks are thrown at the same time into a body of water
2. The same song played on two speakers
3. Two different light sources side by side
4. Light reflected from a film of oil floating on water

16. Which of the following is/are true:

1. Plane waves of light of a single wavelength are needed for interference to work
2. Diffraction can occur using different light sources A.I only b. II only c. both I and II d. Neither I and II