Energy
What is energy?
Energy is the ability to do work or cause change.
What is speed?
Speed is the distance traveled over time.
What is a collision?
A collision is when two objects hit each other.
What makes a roller coaster go up and down?
The change in height and the forces acting on it.
What does it mean for a ball to be in motion?
It means the ball is changing its position.
Name two forms of energy.
Kinetic energy and potential energy.
If a car travels 60 miles in 1 hour, what is its speed?
60 miles per hour.
Name one type of collision.
Elastic collision.
What kind of energy is highest at the top of a rollercoaster?
Potential energy.
What forces act on a ball when you throw it?
Gravity and air resistance.
What type of energy is stored in a stretched rubber band?
Potential energy.
How can you calculate the speed of an object?
Speed = Distance ÷ Time.
What happens to the objects during a collision?
They may change direction or speed.
Why do roller coasters need to be designed carefully?
They must be designed to ensure safety and manage forces.
Why is the surface area important for a parachute?
A larger surface area allows for more air resistance.
How does energy change when you turn on a light?
It transforms electrical energy into light energy.
What happens to speed when an object goes downhill?
Speed increases as it goes downhill.
How does a soft surface affect a collision?
A soft surface reduces the impact and slows down the objects.
What happens to the surface area of an object if it is flattened?
Speed increases as it goes down due to gravity.
What is surface area?
Surface area is the total area of the surface of a three-dimensional object.
Explain how energy can be transformed from one form to another.
Energy can be transformed from one form to another, such as potential energy to kinetic energy.
Why does it take longer to run a mile than to walk a mile?
It takes longer to run because running requires more energy and effort.
What is the difference between a hard collision and a soft collision?
A hard collision involves a greater impact force than a soft collision.
How does surface area affect how fast an object falls?
Gravity pulls the coaster down, providing acceleration.
What happens to the surface area of an object if it is flattened?
It decreases the surface area.