Air resistance
Friction
Gravity
Pressure
The balls will fall at the same rate
The metal ball will fall faster
The plastic ball will fall faster
The larger ball will fall faster
Gives it a speed greater than 11,000 m/s
No longer affects the astronauts on board
Makes it impossible for it to stay in orbit for a long period of time
Continues to pull it toward the center of Earth
Pressure
Friction
Gravity
Motion
Placing the chair so that a smaller area is in contact with the floor
Putting a plastic sheet on the floor before he slides the chair
Asking a friend to sit in the chair while he pushes it
Increasing the force with which he pushes the chair
Decrease its surface area
Lower its temperature
Increase its speed
Make its surface rougher
Multiply the mass by the gravitational constant g
Divide the force by the area over which it is exerted
Divide the total mass by the volume
Multiply the mass by the acceleration
Increases; there is less air below her than above her
Stays the same no matter how high she climbs
Decreases; there is more air below her than above her
Changes depending on how fast Lisa climbs
Pascal's principle
Buoyancy
Density
Bernoulli's principle
Equal to the pressure Naomi exerts
Less to the pressure Naomi exerts
Greater to the pressure Naomi exerts
Dependent on the area of the opposite end of the tube
N (Newton)
Pa (Pascal)
Kg (kilogram)
M (meter)
0 Pa
2 Pa
25 Pa
12.5 Pa
Box A
Box B
Option 3
Option 4
The tennis ball will hit the ground first because it has a smaller surface are so it has less air resistance
They will both go upward instead of fall to the ground
The larger ball will hit the ground first because it has more surface area and has more air resistance
Option 4
Frictional force
Gravitational force
Buoyant force
Option 4
Robin's force needs to be smaller to push the more massive cart
Robin's force needs to be greater to push the more massive cart
Robin's force needs to be the same to push the more massive cart
It really doesn't matter how the mass of the cart changes