PRE-TEST IN PHYSICS

Jeofrey walked 300 m East from home to visit Mattheus. He then walked another 500 m East to fetch Jhen and both of them walked 300 m West to watch the birds. Which of the following statements is true?

• Jeofrey went home.  

• A.  Jeofrey has travelled a total distance of 1,000 m. 

• Jeofrey’s displacement is shorter than the total distance he has travelled.

• Jeofrey’s displacement is zero if he has travelled 700 m West together with Jhen.

Which of the following is true about an object that travels 5 meters to the left, then another 5 meters to the right?

•   The displacement of the object is equal to 10 meters. 

•   The displacement of the object is equal to 10 meters, right. 

• The total distance travelled by the object is equal to 10 meters.

• The total distance travelled by the object is equal to 10 meters, right.

Jenelene was asked by her science teacher if an object's displacement can be longer than distance. She answered no. Is Jenelene's answer correct?

• Yes, displacement can be longer to the distance.

• No, displacement is the total length covered by an object in motion. 

• Yes, displacement is the longest length between two object’s point of origin and its point of destination.

• No, displacement is the shortest length between two object’s point of origin and its point of destination.   

   

Leah, an aspiring athlete, runs the oval. The oval has a total length of 1500 meters. She always finished running 2 laps as part of her daily routine. Is it true that her total displacement is 3000 meters, East?

•   No, because her total displacement is equal to zero. 

• Yes, because she finished 2 laps which is equal to 3000 meters.

• No, because her total displacement should be 3000 meters, West 

• Yes, because her displacement is equal to her total distance covered.

Marky is doing an experiment. He throws a piece of stone in a pond. Was he able to create waves?

• No, waves were created when the stone touches water. 

• Yes, he was able to create depressions on the water.

• No, the stone floats on the water.

• Yes, he observes that when the stone touches the water, circular ripples are formed.

Which of the following items best describes the nature of light?

• current and wave

• mass and particle

• point and wave

• wave and particle

How do you call objects that emit light?

• luminous

• non-luminous

• opaque

• transparent

Which of the following materials would reflect light the most?

• black rock

• dark brown carpet

• flat sheet of aluminum foil

• piece of red construction paper

In what material does sound travel the fastest?

• Gas

• Liquid

• Solid

• vacuum

Which of the following statements DOES NOT correctly describes a wave?

• The highest point on a transverse wave is the trough.

• Waves carry and transfer energy.

• Wave is a propagation though a medium or space.

• Waves have characteristics such as amplitude and wavelength.