1st Law
2nd Law
3rd Law
Falling
Pulleys
100
The name of Newton's 1st law
What is inertia?
100
The name of Newton's 2nd law
What is acceleration?
100
The name of Newton's 3rd law
What is action-reaction?
100
Does Billy or Susan land first?
TIE!
100
The man weighs 100 lbs. What is the tension in the rope?
50 lbs
200
Is your mass the same on the moon?
yes
200
Two balls of the same volume are hit with the same force. One ball accelerates LESS than the other. According to Newton's 2nd law, the ball with the SMALLER acceleration must have ________ mass.
More
200
A car hits a bug. Which felt more force?
SAME!
200
As she fall faster what happens to her acceleration?
Decreases
200
Block B weighs 10 lbs. What does block A weigh?
5 lbs
300
What causes an object to accelerate?
an unbalanced force
300
A rocket loses mass as it travels while applying the same force of thrust. Its acceleration will ____
increase
300
What are TWO ways you can win tug of war?
mass and friction
300
What TWO things does air resistance depend on?
Surface area and speed
300
Block A weighs 100 lbs. What does block B weigh?
200 lbs
400
If you are driving at 70 mph and have no forces acting on you then what will happen?
constant speed
400
What are three ways an object can accelerate?
speed up
slow down
turn
400
What is the reaction to a helicopter pushing air down?
air pushes the helicopter up
400
Does Billy or Susan land first?
Billy. He has to move faster to create enough air resistance to reach terminal velocity since he weighs more.
400
Which of these is hardest to lift?
A
500
What force prevents the bottom part of a slinky from falling when the top is dropped?
tension
500
What is the net force and acceleration of this object?
Net force: 10 N
Acceleration: 5 m/s^2
500
Which cart feels more force? Which cart has a larger acceleration?
Same! Smaller cart
500
In which position (2,3,4) is he moving fastest?
In which position (2,3,4) does he have the least acceleration?
3. 3.
500
The tension in the rope is 20 lbs. What does block B weigh?
40 lbs