Newton's Laws of Motion
A car suddenly stops, and the passengers continue to move forward. Which of Newton's laws explains this situation?
What is Newton’s 1st Law (Inertia)?
When a ball is thrown in the air, at what point does it have the most potential energy?
What is at the highest point?
A person pushes a stationary object, but it doesn’t move. What does this mean about the forces?
What are balanced forces?
If you lift a box onto a table, which type of energy are you using?
What is work?
When you rub your hands together on a cold day, what type of energy transformation occurs?
What is kinetic energy to thermal energy?
If two objects of different masses are pushed with the same force, which one will accelerate more? What law is this?
What is the object with the smaller mass? What is Newton’s 2nd Law.
A 5 kg object is moving at 10 m/s. What type of energy does it have?
What is kinetic energy?
What force causes a rolling ball to slow down and eventually stop?
What is friction?
A machine does 500J of work in 10 seconds. How much power does the machine have?
What is 50 watts?
A light bulb turns electrical energy into what form of energy?
What is light energy (and thermal energy)?
When you walk, your foot pushes on the ground, and the ground pushes back with an equal force. Which law is this an example of?
What is Newton’s 3rd Law (Action-Reaction)?
Which factor affects both potential and kinetic energy?
What is mass?
When a person rides a bike and increases their speed, which type of force is responsible for the acceleration?
What is an unbalanced force?
If a person applies more force to a machine, how does this affect the work done?
What is more work is done?
In a hydroelectric power plant, what type of energy is converted into electrical energy?
What is gravitational potential energy (from water)?
A baseball bat hits a ball with a force of 50N. How much force does the ball exert on the bat?
What is 50N? (Newton’s 3rd Law)
A roller coaster car is at the top of a hill, just before it starts moving down. What type of energy is at its maximum?
What is potential energy?
You push a shopping cart, and it moves forward. What is the direction of the force?
What is the direction in which the cart moves?
You push a lawnmower 10 meters with a force of 20N. How much work did you do? What is the formula?
What is 200J? (W = F × d)
When you eat food, your body converts chemical energy into what form of energy?
What is mechanical energy (and thermal energy)?
If an object is moving at a constant velocity, what does this say about the forces acting on it? What law is this?
What are balanced forces? What is Newton’s 1st Law?
As a skateboarder rolls down a hill, what happens to their potential energy?
What is it decreases as kinetic energy increases?
A skydiver jumps from a plane. As they fall, what force is acting opposite to their motion?
What is air resistance?
A ramp reduces the force needed to move an object but increases the distance. What is the trade-off in this machine?
What is less force for a longer distance?
A car engine converts chemical energy from fuel into which two main forms of energy?
What are mechanical energy and thermal energy?