STAAR Success - Grade 8 Science - Practice #2

• Lower data transfer speeds

• Susceptibility to electromagnetic interference

• Limited range due to line-of-sight requirements

• Higher energy consumption

• Lower production cost

• Higher efficiency in all conditions

• Longer lifespan

• Established manufacturing processes

• High electrical conductivity

• Exceptional tensile strength

• Biodegradability

• Transparency

• Mitosis

• Cloning

• Crossing-over during meiosis

• Asexual reproduction

• Sound wave

• Seismic wave

• Water wave

• Light wave

Group 3

Source 3.1

• It depends only on the speed of an object.

• It is energy due to the position or condition of an object.

• It cannot be converted to kinetic energy.

• It is the energy an object has while in motion.

Group 4

• The net force is zero.

• The net force is directed forward.

• The net force is directed backward.

• The net force is equal to the car’s weight.

• The car accelerates to 30 m/s.

• The car continues to move at a constant speed of 20 m/s.

• The car is on a frictionless surface.

• The car is driving in a circular path.

• 5 N

• 10 N

• 20 N

• 30 N

Group 5

• 2.5 m/s

• 10 m/s

• 20 m/s

• 25 m/s

• It doubles.

• It halves.

• It remains the same.

• It decreases to one-fourth of its original value.