GRADE 7 PHYSICS

V. Motion and Energy

Chapter I

A. Constant and uniformly accelerated motion

Describe what uniformly accelerated motion is

a. Displacement

What is the difference between distance and displacement?

b. Speed, velocity, and acceleration

Describe the motion of an object in terms of distance or displacement, speed or velocity, and acceleration

Differentiate quantities in terms of magnitude and direction

Create and interpret visual representation of the motion of objects such as tape charts and motion graphs;

c. Motion detectors

Chapter II

B. Waves

What are waves?

a. Transverse vs. longitudinal

b. Mechanical vs. Electromagnetic

Differentiate transverse from longitudinal waves, and mechanical from electromagnetic waves

c. Characteristics of waves

amplitude wavelength

Infer that waves carry energy

Relate the characteristics of waves

Chapter III

C. Sound

Describe the characteristics of sound using the concepts of wavelength, velocity, and amplitude

a. Formation

Describe how organisms produce, transmit, and receive sound of various frequencies (infrasonic, audible, and ultrasonic sound)

b. Pitch and loudness

Explain sound production in the human voice box, and how pitch, loudness, and quality of sound vary from one person to another

D. Light

a. Nature characteristics

What is light?

What type of wave is light?

Infer that light travels in a straight line

c. Intensity, brightness

Relate characteristics of light such as color and intensity to frequency and wavelength

E. Heat

a. Nature

What is heat?

b. Heat Transfer

Conduction Convection Radiation

Infer the conditions necessary for heat transfer to occur

F. Electricity

What is electricity?

a. Charges

What are the different types of charges?

c. Charging process

Explain the importance of earthing or grounding

Describe the different types of charging processes