Embedded Files
What would happen if a crash-test dummy was in the driver's seat of the truck when it hit the bollard?
What would happen if a crash-test dummy was in the driver's seat of the truck when it hit the bollard?
Concept​: Objects at rest remain at rest unless acted upon by an outside unbalanced force
Guiding Question: What happens when multiple forces act on an object?
Phenomenon
Phenomenon
Lion Video: Who had the stronger force, the tiger or the people?
Floating Leaves: Why did the leaves stay in the air? Why didn't they fall?
Porta-Potty Accident: What forces caused the accident?
Crash Test Dummy: If there were a crash test dummy in the truck, what would happen to the dummy when the truck hits the bollard?
Egg Drop: Why did the Eggs drop straight into the cups of water?
Crash Test Dummy: Why does the crash test dummy fall off the back of the truck?
Notes / Reading Resources
Notes / Reading Resources
Log into Google with your Hart District Email to view the notes and articles. If it asks you to "request for access," then you are not logged in with HART.
Forces Foldable Assignment - Read the instructions in the document to the right to complete the Foldable Project.
Forces: Applied & Normal Articles for Foldable
Friction pg. 381-383Gravity & Tension pg. 384-388
Article: InertiaMatter and Energy Articles
Article: Combining Forces
SIMULATIONS
SIMULATIONS
LABs
LABs
Nail Tower - Watch a video of the world record for building a nail tower. Click the image on the left and it will take you to the Guinness Book of World Records where you can watch the video
Spring Scale Lab Video.movSpring Scale Lab: Use the video to the left if you are absent. Read the measurements on the spring scale for your data.
Inertia Quarter/Poker Chip Lab
Quarter Cup Flick Inertia.MOVWhy did the quarter fall into the cup when the card was pulled?
quarterflick2.movWhy did the quarter fall into the cup when the card was flicked?
Car Crash Lab
Inertia Car Crash - Front End.MOVFront End Collision against a wall. What happens with the red poker chip?
Inertia Car Crash - Rear End.MOVRear End Collision by another object (a student's hand). What happens with the red poker chip?
Lab: Newton's First Law of Motion Using Poker Chips
1 Poker Chip.MOV1 Poker Chip forced to hit the stack.
2 Poker Chips.MOV2 Poker Chips forced to hit the stack.
3 Poker Chips.MOV3 Poker Chips forced to hit the stack.
Videos
Videos
Vocabulary
Vocabulary
- Velocity - the speed of an object in a particular direction
- Acceleration - A measure of the change in speed of a moving object. It measures the rate at which velocity changes. It could be due to a change in speed, direction, or both.
- force - a push or a pull in a particular direction
- vector - An arrow that shows the strength and direction of a force.
- net force - The combination of all the forces acting on an object.
- unbalanced forces - Forces that produce a nonzero net force, which changes an object's motion.
- balanced forces - Equal forces acting on an object in opposite directions.
- inertia - the tendency of an object to resist a change in motion
- Newton's First Law of Motion - An object in motion will stay in motion, and at rest will stay at rest, unless acted upon by an unbalanced force.
- Law of Conservation of Matter - Energy is never created or destroyed, but it can be changed from one form to another when it interacts with matter.
- kinetic energy - the energy of motion, or moving matter; everything that is moving has energy
- work - when a force acts on an object to move it out of its original position.
- Source-Receiver Diagrams - A diagram that shows how matter and energy interact and how energy is transferred from one object to another
Other words that will help you:
- applied force - A push or pull on an object caused by a person or another object
- Newton - the unit used to measure forces; abbreviated with an N
- tension - A pulling force that is exerted by a string, cable, or chain on another object.
- compression - a force that squeezes things together
- normal force - the force that supports the weight of an object on a surface
Review
Review
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