Semester 1 Review

Front

What do H-R diagrams show about stars?

Back

H-R diagrams show the brightness and temperature of stars.

Front

How do you calculate the time taken for a trip?

Back

Time = Distance / Speed.

Front

What is the direction of motion if an object is moving back towards its starting point?

Back

The object is moving back towards its house.

Front

What is the equation to calculate distance?

Back

Distance = Speed x Time.

Front

What is the term for speed in a certain direction?

Back

Velocity.

Front

What is the definition of speed?

Back

Speed is the distance traveled per unit of time.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

What is the formula for calculating average speed?

Back

Average Speed = Total Distance / Total Time.

Front

What does it mean if an object has a constant speed?

Back

It means the object is moving the same distance in equal intervals of time.

Front

What is the significance of the slope on a distance-time graph?

Back

The slope represents the speed of the object.