Science peta q3

If Shmily travelled to Navotas City Hall at 40km in 1 hour. Then, travelled to Agora at 30km in 1 and 1/3 hours. Lastly, travelled to his house at 17km in 38 minutes. What was the average speed throughout his journey?

• 28.99km/hr.

• 29.33km/hr.

• 24.66km/hr.

• 30km/hr.

Answer explanation

Solution : 87km divide by 89/30 = 29.33 km/hr.

A car travels at a speed of 120km/hr. in 6.5 hours. How far did it travel?

• 18.4km

• 18.36km

• 19.465km

• 18.46km

What is a physics quantity that has magnitude only?

• Scalar

• Vector

What is the process which separates the components of white lights?

• diffraction

• refraction

• Reflection

• Dispersion

Which among the choices, has the longest wavelength among the visible light

• Violet

• Blue

• Red

• Green

• All of them has the same lengths of wavelength

Fierre is currently traveling at 15m/s , and is accelerating with a constant acceleration of 5m/s². Shmily is moving at a constant velocity of 30m/s . How far must Fierre travel until it matches Shmily's velocity?

• 38m

• 67.5m

• 90m

• 45m

Which of the following is a transverse wave?

• 
• 

What is the maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position?

• Amplitude

• Frequency

• Wavelength

• Crest

What is the formula for acceleration?

• acceleration = (final velocity - initial velocity) * time
• acceleration = (final velocity + initial velocity) / time
• acceleration = (final velocity * initial velocity) / time
• acceleration = (final velocity - initial velocity) / time

What is the formula to find frequency?

• Frequency = Number of occurrences / Total time
• Frequency = Total time * Number of occurrences
• Frequency = Number of occurrences - Total time
• Frequency = Total time / Number of occurrences