2nd Quarter Examination in Physical Science

Which type of motion is depicted on the graph shown on the right?

• uniformly accelerated motion

• uniform motion

• at rest

• none of the above

What is the phenomenon where light waves vibrate in a specific direction, reducing glare and enhancing visual clarity, often used in sunglasses and polarizing filters?

• Dispersion

• Refractions

• Polarization

• Reflection

According to Aristotle, how did he describe the natural state of motion for objects?

• Objects remain at rest unless acted upon by an external force.

• Objects move at constant velocity.

• Objects fall with uniform acceleration in a vacuum

• Objects move with uniform acceleration.

Which of the following experiments provided evidence for the wave nature of light?

• Young's double-slit experiment

• Photoelectric effect

• Davisson-Germer experiment

• Compton scattering

According to him, an object's fall rate is independent of its mass. Who is he?

• Aristotle

• Galileo

• Both A & B

• Neither A nor B.

What kind of mirror should be used in the side view mirror of a car?

• Plane mirror

• Convex mirror

• Concave mirror

• Curve mirror

Suppose you are standing in the aisle of a moving bus, and the driver suddenly takes a left turn. You are likely to lurch to the right because of ___________.

• the tendency to keep moving forward

• an equilibrium challenge

• an unbalanced force

• the momentum

Which explains why sunsets are red?

• Air molecules scatter red light more readily than others

• Red light is scattered the least and is transmitted the most in the atmosphere

• Red light is of shorter wavelength than other colors of light

• Red light survives the absorption of the particles in the atmosphere

Based on Galileo's idea, predict what will happen if you roll a ball on a level surface.

• Soon slow down due to its natural place

• Roll if its inertia nudges it along

• Keep rolling if friction is absent

• Soon rolls in the opposite direction

Which of the following is TRUE about Galileo's assertion about free-falling bodies?

• Bodies will fall on the surface of the Earth at a constant velocity.

• Bodies will fall on the surface of the Earth at a constant acceleration

• Bodies will fall on the surface of the Earth at a constant projectile.

• Bodies will fall on the surface of the Earth at a constant speed.