Q2 Science NC Check-In Review

Front

What is speed?

Back

Speed is the distance traveled per unit of time, usually measured in meters per second (m/s).

Front

How do you calculate speed?

Back

Speed = Distance ÷ Time.

Front

If Sarah ran 250 meters in 30 seconds, what was her speed?

Back

8.33 meters per second.

Front

What is the formula to find the difference in speed between two days?

Back

Difference in speed = Speed on Day 1 - Speed on Day 2.

Front

What does a graph showing movement over time indicate?

Back

It shows how the position of an object changes as time progresses.

Front

What does it mean if an object moves positions as time increases?

Back

It means the object is in motion and changing its location.

Front

What is constant speed?

Back

Constant speed means an object covers equal distances in equal intervals of time.

Front

How do you determine the greatest distance moved in a time interval from a graph?

Back

Look for the steepest slope on the graph during that time interval.

Front

What factors can affect the speed of a rolling object?

Back

Surface texture, incline of the ramp, and weight of the object.

Front

What happens to the speed of a marble if the ramp is smoother?

Back

The speed increases because there is less friction.