Special Forces
Force when something hits the ground from above
What is impact force?
A bowling ball has a mass of 5 kg and an acceleration of 2 m/s. Can a person 60 kg stop the ball from rolling if they're moving at 0.5 m/s?
What is YES?
A car stops moving when it hits a wall. Which law is this?
What is Newton's First Law?
(DOUBLE OR NOTHING: There is a force from the car onto the wall and from the wall into the car. Which law is THIS showing?)
Correct the following statement: Based on Newton's first law, an object in motion usually just stops moving whenever for no reason.
What is "an object in motion stays in motion until acted on by a force"?
In a game of tug of war, the first side has a mass of 200 kg and pulls at a rate of 2 m/s2 while the second side has a mass of 150 kg and pulls at a rate of 3 m/s2. Which side has more force?
A 1 kg basketball moves through the air at a rate of 4 m/s. THIS is the force it hits the ground with.
What is 4 N?
A giant monster truck hits the wall, and so does a tiny clown car. The monster truck puts a bigger hole in the wall than the clown car. Which law is this?
What is Newton's Third Law?
Combination of all the forces acting on an object
What is net force?
It takes 3 N of force to break an eggshell. After a 2 kg egg drops, it moves towards the ground at a rate of 2 m/s2. Does the egg break?
What is YES?
A ball sits still on the ground. Someone walks past and it stays still. Someone else walks past and it stays still. Someone kicks it hard and the ball moves. Which law is this?
What is friction?
It takes 5 N of work to overcome mass and move a big metal cube. A person throws a 1.5 kg baseball at the cube at 3 m/s2. Does the cube get moved?
What is NO?
A force squishes a spring against the ground. When it springs upward, there is a force when the floor pushes against the spring and there is a force when the spring pushes away from the ground. What law is this showing?
What is Newton's Third Law?
Force that keeps satellites orbiting the Earth
What is gravity?
A giant pumpkin rolls downhill. It hits a turkey with 50 N. If it has a mass of 25 kg, how fast is its acceleration?
What is 2 m/s2?