GRADE 7 SCIENCE 3RD QUARTER

What is the highest point of a wave called?

• Trough

• Crest

• Wavelength

• Frequency

If you know both speed and direction, what can you find?

• Acceleration

• Velocity

• Distance

• Time

If an object is slowing down, what is its acceleration?

• Positive

• Negative

• Zero

• Constant

What is the distance between two consecutive crests or troughs called?

• Amplitude

• Frequency

• Wavelength

• Velocity

Which type of wave can travel through a vacuum?

• Light wave

• Sound wave

• Water wave

• Mechanical Wave

What does velocity describe?

• Speed in a specific direction

• Distance covered in total

• Time taken to travel

• Direction of motion

Acceleration is the rate of change of:

• Distance

• Speed

• Direction

• Time

What does an insulator do in an electrical circuit?

• Allows electricity to flow easily

• Doesn't allow the flow of electricity.

• Regulates the voltage

• Generates electricity

Which of the following is NOT a method of heat transfer?

• Conduction

• Reflection

• Radiation

• Convection

How is speed different from velocity?

• Speed includes direction, velocity does not

• Velocity includes direction, speed does not

• They are the same

• Speed and velocity have no relation