Motion, Speed, Forces & Gravity REVIEW

Motion is a change in _________________

• position.

• time.

• speed.

• direction.

Reference frame is the point from which you observe ________________.

• Reference frame

• motion

• objects

• events

Speed is the ________________ something travels in a certain amount of ________________.

• Speed is the distance something travels in a certain amount of time.

• Speed is the velocity something travels in a certain amount of time.

• Speed is the acceleration something travels in a certain amount of time.

Velocity is speed in a certain __________________________.

Acceleration is a change in __________________________ or __________________________.

• direction or distance

• distance or time

• speed or direction

A force is a __________________________ or a __________________________.

• push or pull

• push or stop

• energy or pull

• mass or weight

The combination of all forces acting on an object is the __________________________.

• Net force

• Gravitational force

• Frictional force

• Magnetic force

Force is measured in __________________________.

• Newtons

• Joules

• Watts

• Amperes

__________________________ forces produce NO change in the motion of an object.

• balanced

• unbalanced

• gravitational

• frictional

__________________________ forces produce a change in the motion of an object.

• balanced

• unbalanced

• energy

• net