Vocabulary
A _____________________ is push or pull.
Force
The tendency of an object to resist a change in its motion
Inertia
Two people who are the same size and weight push against one another. Is this balanced or not?
This is an example of a balanced, because neither person moved. Meaning they are using the same amount of force in the opposite direction of each other.
When an object has a net force of 0
What is Balance Force
A plane coming to a stop is example of
Balance forces
Maria walks 2 kilometers to school in 30 minutes. What is her average speed in km/h?
What is 4km/h
An ___________ happens when the forces acting on an object are not equal in size or not opposite direction,
What is unbalance force
When forces are _____________________ an object the object will not move (be stable).
Balanced
You kick a ball and it moves. Is this an example of a balanced or unbalanced force?
This an example of an unbalance force because the ball moves.
What force slows you down when sliding?
Friction
A car speeding on the highway is example of
Unbalance forces
A car travels 120 miles in 3 hours. What is its average speed?
40mph
_____________________is a forces that holds back sliding objects.
Friction
When forces are _____________________when an object is in motion (or be unstable).
Unbalanced
You push a toy truck and it moves across the floor. Is this a balance or unbalance force?
This is an example of an unbalance force.
Which force keeps us on the ground?
Gravity
Velcoity is the measurement of both _______ and _______
Speed and direction
What is the formula for finding the average speed of an object?
Average speed = Distance/Time
______________ is the state in which different things are equal.
Balanced
_____________________is a force.
Gravity
Two soccer player kick the ball at the same exact time. The ball does not move. Is this an example of a balance or unbalance force?
This is a balanced force. The ball did not move meaning both players use the same amount of force, which canceled each other out.
What happens when a object has balanced forces?
The object does not move.
Speed is a measurement of only
has fast something is moving
A runner completes a 400m lap in 80 seconds. What is the average speed in meters per second (m/s)?
5 m/s
No change in motion
What is Balance Force?
The _____________________of the object determines the size of the force.
Distance
You are playing tug-a-war with a group of kids. Team one wins very quickly. Is this an example of a balanced or unbalance force?
This is an example of an unbalance force.
You have two balloons attached to a string facing each other. One is fill more than the other. When you let go the balloon that had more air push the smaller balloon back. Which balloon had a greater amount of force?
The balloon with the more air had the greater force.
What's the difference between speed and velocity
Speed is how fast something goes and velocity is speed with direction.
A car drives 80km in 2 hours, then stops for 30 minutes to rest. After the break, it travels another 100 km in 1.5 hours.
45 km/h