Lab
Vocabulary
Forces
Interactive
100
What were we comparing in the car lab?
Force and mass
100
Any push or pull
Force
100
The ________ the mass of an object, the more force required to change the object's motion.
higher (larger)
100
Which side will win and how do you know?
Blue: The left force arrow is longer
200
Which car went the furthest (more mass or less mass)?
Less Mass
200
A force that causes a push or pull when two objects touch
Contact Force
200
Sophia hits two different baseballs with the same force. Which ball will go farther:
1. The ball with more mass
2. The ball with less mass
3. The rougher ball
2. The ball with less mass
200
Which side will win and explain how you know:
Tie: Both force arrows are the same length
300
Which car would it take more force to move; a 2 kg car or a 3 kg car?
The 3 kg car
300
A force that can act at a distance
Non-Contact Force
300
What is an example of a non-contact force?
Gravity
Electricity
Magnetism
300
Which side will win and explain how you know?
Red: It has a larger force arrow.
400
List two forces acting on each car.
Push and friction
400
The contact force that acts against movement when two objects touch against each other.
Friction
400
What non-contact force and cause some metals to move without touching them?
Magnetic Force
400
Will the box change its motion with this amount of push force? Why or why not?
No it will not move. The friction force is the same as the applied force. The force arrows are the same length.
500
Is the force that caused the car to move a contact force or non-contact force and what was that force?
Contact force
Push from the air pressure
500
A set of forces that does not change an object's motion.
Balanced Forces
500
Which non-contact force causes an object to be pulled to the ground without touching it?
Gravity
500
Will the box change its motion with this set of forces? How do you know?
Yes, the box will change its motion because the forces are unbalanced. The applied force arrow is longer than the friction force arrow.
600
What is it called when the sum of the mass of the parts equals the total mass of the whole?
Conservation of Mass
600
A set of forces that changes an objects motion
Unbalanced Forces
600
A magnet is hovering in the air (not moving) over another magnet. What two forces are acting on the magnet?
Magnetic force and gravity
600
Will the girl stop sliding? How do you know?
The girl WILL NOT stop sliding because there are no unbalanced forces causing a change in motion.