Potential energy & Kinetic energy
A car at the top of a hill is not moving. What type of energy does it mainly have ?
Potential Energy!
Why do race cars have wide tires?
To increase grip on the track
Which force opposes the motion of an airplane through the air?
Drag
Which force always pulls objects toward Earth?
Gravity
What force helps a rocket move upward?
The force of thrust pushing upward
What happens to kinetic energy when an object speeds up?
It increases
Why is a front splitter added to a race car?
To increase downforce and reduce air flowing underneath the car
If a skater starts at the top of a ramp, where is their potential energy the greatest?
At the top
What force lifts an airplane into the air?
Lift
When a ball falls, what energy change happens?
Potential energy changes into kinetic energy
If the height of a ramp increases, what happens to the potential energy of a car at the top?
It increases
Explain how a rear wing helps a race car?
It creates downforce that pushes the tires into the track
As a roller coaster goes down a hill. What happens to its energy?
Potential energy changes into kinetic energy
Which force pushes an airplane forward?
Thrust
Why do cyclists lean forward in races?
To reduce air resistance and drag
Two identical race cars start from different heights on a ramp. Car A starts higher than Car B. Which car will have more kinetic energy at the bottom?
Car A will have more kinetic energy at the bottom because it started with more potential energy
Why do Formula 1 cars often drive very low to the ground?
To increase the ground effect and create more downforce
Two marbles collide. One moving marble hits a marble at rest, causing the second marble to move. What is being transferred?
Momentum and kinetic energy
Which law states that for every action there is an equal and opposite reaction?
Newton’s Third Law
What happens to drag when a car moves faster?
The amount of drag usually increases
A car travels up a hill and slows down. What is happening to its energy?
Kinetic energy is being converted into potential energy
An engineer wants a race car to corner faster. What modifications will help the race car corner faster?
More downforce and high grip tires
What is the formula for density?
Mass ÷ Volume
If an object has a mass of 10 kg and accelerates at 2 m/s². How much force is applied?
20 N
Why do race cars balance downforce and drag?
Too much drag slows speed even if grip improves