Physical Science MT

A statement about what happens in nature that seems to

be true at all times. It describes specific relationships under given conditions.

• Theory

• Scientific Law

• Hypothesis

• Testing

An explanation based on knowledge gained from many observations and investigations. It can be modified as new information comes in.

• Theory

• Scientific Law

• Hypothesis

• Tetsing

__________________ is a change in an object’s position relative to a reference point.

• Distance

• Motion

• Coordinate

• Position

__________________ is the distance an object travels per unit of time.

• Velocity

• Acceleration

• Displacement

• Speed

________________ includes the speed of an object and the direction of its motion.

• Speed

• Distnace

• Momentum

• Velocity

The ______________________ of an object is the product of its mass and velocity.

• Acceleration

• Speed

• Momentum

• Velocity

The world record for the 100m dash is about 10 m/s.

• Speed

• Velocity

A 250,000 kg train was traveling south at 60 km/h when it derailed.

• Speed

• Velocity

Identify 3 ways an object can accelerate.

• Changing direction

• Speeding Up

• Having opposing forces

• Slowing Down

There are 3 rules used for adding forces together. Which of the following are those rules?

• Add forces in the same direction.

• Subtract forces in opposite directions.

• Forces not in the same direction or in opposite directions cannot be directly added together.

• Forces not in the same direction or in opposite directions must be added together.