Vocabulary
A change in the position of an object
What is motion?
True or False: all kinds of things around you do not move in different ways.
This is the formula for average speed.
What is total distance/total time?
This happens to the energy of an object when the speed of the object decreases.
What is the energy of the object decreases?
Gravity is a force that makes objects do this.
What is pull toward each other?
The rate at which an object changes position.
What is speed?
True or false: Many objects can be reference points.
What is True?
A car travels 160 km in 2 hours. What is the average speed of the car?
What is 160 km/hr?
This type of force must touch an object to affect it.
What is a contact force?
On which object would the force of gravity be strongest? An apple, a book, a basketball, or a truck?
What is a truck?
A place or an object used to determine if an object is in motion.
What is a reference point?
Motion is _______ and is affected by ________.
A high speed train travels 1,000 kilometers in 4 hours. What is the train's average speed?
What is 250 km/hr?
This is an example of velocity:
Walking 28 km
Walking 28 km/hr quickly
Walking 28 km/hr north
Walking 28 km/hr
What is walking 28 km/hr north?
A teacher walks by a students desk. The desk was in front of the teacher and is now behind the teacher. What term describes the change in the teacher's position compared to the desk?
What is relative motion?
This combines both the speed and direction that an object is moving.
What is velocity?
Two students push boxes with the same mass for 10 seconds. Which students moved her box a greater distance?
The student who used less force?
The student who had a greater body mass?
The student who used more force?
The student who had greater body mass?
Who is the student who used more force?
A student wants to describe the velocity of a moving car. What information does the student need?
What is speed and direction?
Which object requires the least amount of force to move it 5 meters? a golf ball, soccer ball, bowling ball, or table tennis ball?
What is a table tennis ball?
A train goes around a corner at the same speed it was traveling on a straight track. What is this an example of?
What is acceleration?
This can make an object that is standing still start to move in the direction of any push or pull.
What is a force?
Understanding the motion of most objects we see on Earth includes observing and describing changes in the object's _______ and __________.
What is speed and direction?
Which of the following is not an example of an acceleration?
A train slowing down to a stop.
A train moving at the same speed going around a corner.
A train moving at the same speed in the same direction.
A train increasing its speed.
What is a train moving at the same speed in the same direction?
You are moving a heavy box across a room. You ask a friend to help you lift it. What is it easier when your friend helps?
What is the forces that you and your friend use are combined, so there is now a greater amount of force to move the box?
Describe what happens to the motion of a baseball after a pitcher throws it?
What is:
The pitcher throws the ball in the direction of the batter. The ball makes contact with the bat and the force makes the ball change speed and direction?