A spaceship applies a force in the opposite direction to it's motion. What happens to the spaceship?
What is it slows down?
100
The force that affects a cannonball after it leaves a cannon.
What is drag?
100
The type of force when the strength of both forces is the same, but they are in opposite directions.
What is balanced?
100
A hammer is an example of this simple machine.
What is a lever?
100
Two bikers are using drag to slow themselves down. The first biker hunches down so he is one half the size of the second biker. Which biker slows down first?
What is the second biker?
200
When a wind comes up behind your car and pushes it along as your driving it, what will happen?
What is you will speed up?
200
The force(s) that affect a roller-blader that is slowing down.
What are friction and drag?
200
The type of force on an object if is speeding up.
What is unbalanced in the direction of motion?
200
A pair of scissors is an example of this simple machine. (Think of the scissors cutting paper)
What is a wedge?
200
Car A has twice the mass as Car B. Which one can speed up more quickly, if they use the same amount of force?
What is Car B?
300
The main force on a bike and rider as it is slowing down.
What is friction?
300
On a frictionless surface, the force(s) that affect an object's motion as it slides across the surface.
What is there are no forces if there is no friction?
300
If someone pushes a box across the floor at a constant speed, then the friction and the strength of the push are _______.
What are in the opposite direction, but equal in strength?
300
A wheelchair ramp is an example of this simple machine.
What is an inclined plane?
300
If you want to go farther on a sled across ice, you should:
What is increase the amount of mass on the sled?
400
After a rocket uses up all of it's fuel, it will ____________ through space.
What is have constant speed?
400
The force that causes a soccer ball to stop after it is kicked.
What is friction?
400
The kind of force that describes any object that is slowing down.
What is unbalanced in the direction opposite motion?
400
A doorknob is an example of this simple machine.
What is a wheel and axle?
400
A large magnet exerts an equal amount of force on two paper clips. Paper clip A is one half the mass of paper clip B.
Which paper clip moves fastest?
What is paper clip B?
500
The type of motion a box will have if two kids push on opposite sides with equal force.
What is constant speed? (No Speed)
500
This is transferred to a baseball after a pitcher throws it.
What is energy?
500
A snowboarder slides across a level section of snow, causing him to slow down. The type of force he's experiencing is ___________.
What is unbalanced in the direction opposite to motion?
500
A crane uses this simple machine.
What is a pulley?
500
Car A has twice the mass of Car B.
Car A also has twice the force acting on it.
In a race between Cars A and B, which one wins?