4th Grade The Need for Speed

What is motion?

• A change in the position of something over time in comparison to a reference point.

• A constant speed in a straight line without any change.

• The act of remaining still and not moving at all.

• A change in the color of an object over time.

If an object travels 5 meters in 1 second, what is its speed?

• 3 meters per second

• 5 meters per second

• 7 meters per second

• 10 meters per second

If an object travels 10 meters in 2 seconds, what is its speed?

• 2 meters per second

• 5 meters per second

• 10 meters per second

• 20 meters per second

What is position?

• The distance between two objects.

• The location of an object in relation to another object or place.

• The speed of an object in motion.

• The direction in which an object is moving.

What is a reference point?

• A moving object that changes position frequently.

• A stationary object used to determine the position of another object.

• An object that is always in motion.

• A point in time that marks a specific event.

What happens to a roller coaster as it travels downhill?

• It slows down.

• It speeds up.

• It comes to a stop.

• It changes direction.

What is speed?

• The rate at which an object accelerates.

• The distance an object moves in a period of time.

• The total distance traveled regardless of time.

• The force applied to an object to move it.

What does it mean if an object is moving at a constant speed?

• It travels the same distance in equal intervals of time.

• It accelerates continuously over time.

• It travels faster as time progresses.

• It changes direction frequently.

What is acceleration?

• The rate at which an object changes its velocity.

• The speed of an object in a straight line.

• The distance covered by an object in a given time.

• The force applied to an object to change its motion.

If an object travels 15 meters in 3 seconds, what is its speed?

• 3 meters per second

• 4 meters per second

• 5 meters per second

• 6 meters per second