Day 4. Lesson. STAAR® Blitz. Science. 8th Grade

For an object to move at a constant speed or accelerating it must have unbalanced forces.

Objects moving at a constant speed have unbalanced forces while objects that are accelerating have balanced forces.

Objects moving at a constant speed have balanced forces while objects that are accelerating have unbalanced forces.

For an object to move at a constant speed or accelerating it must have balanced forces.

the forces are balanced

the net force is 10N

The net force is 3 N

The net force is 7N

The object is not moving.

The object is not accelerating.

The object is slowing down.

The object is speeding up.

Segment A to B

Segment B to C

Segment C to D

Segment D to E

W

X

Y

Z

Chemical → light → electrical

Mechanical → sound → light

Thermal → solar → electrical

Electrical → thermal → light

chemical energy to mechanical energy

electrical energy to chemical energy

chemical energy to light energy

mechanical energy to chemical energy