Intro to Motion Review

Front

What is a vector?

Back

A vector is a quantity that has both magnitude and direction.

Front

How do you calculate average speed?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken.

Front

What is the formula for average speed?

Back

Average Speed = Total Distance / Total Time.

Front

What is the distance traveled by a man who walks 3 km north and then 4 km east?

Back

The total distance walked is 7 km.

Front

What is the acceleration of an object in free fall near the Earth's surface?

Back

The acceleration is approximately -9.8 m/s².

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is the unit of speed in the metric system?

Back

The unit of speed in the metric system is meters per second (m/s).

Front

What does it mean for an object to have a velocity of 500 mph, West?

Back

It means the object is traveling at a speed of 500 miles per hour in a westerly direction.

Front

What is the significance of direction in vector quantities?

Back

Direction is crucial in vector quantities as it determines the vector's orientation in space.

Front

How does gravity affect objects in free fall?

Back

Gravity causes objects in free fall to accelerate downwards at a rate of -9.8 m/s².