If a feather and hammer are dropped on the Moon at the same time from the same height they will hit the Moon’s surface at virtually the same time.
TRUE
FALSE
6. Multiple Choice
1 minute
1 pt
The Moon has no gravity.
TRUE
FALSE
7. Multiple Choice
1 minute
1 pt
Mass and weight have the same meaning. To increase the weight of an object requires an increase in the mass of the object.
TRUE
FALSE
8. Multiple Choice
1 minute
1 pt
Susan jumps off a chair. As she is falling, the Earth’s gravitational force on her is LARGER than her gravitational force on the Earth.
TRUE
FALSE
9. Multiple Choice
1 minute
1 pt
Juan drives around a corner at CONSTANT speed. His car is accelerating.
TRUE
FALSE
10. Multiple Choice
1 minute
1 pt
An insect flying through the air smacks into the windshield of a rapidly-moving train. The force the windshield exerts on the insect is higher than the force the insect exerts on the windshield.
TRUE
FALSE
11. Multiple Choice
1 minute
1 pt
If a car hits a tree, the car’s occupants (assume no seat belts or air bags) will be violently thrown forward at the time of the accident due to a force created by the car seats.
TRUE
FALSE
12. Multiple Choice
1 minute
1 pt
A table resting on the floor pushes downward on the floor. The floor likewise pushes upward on the table.
TRUE
FALSE
13. Multiple Choice
1 minute
1 pt
If lightning strikes a car, the people inside it will not be electrocuted because the tires of the car act like insulators.
TRUE
FALSE
14. Multiple Choice
1 minute
1 pt
Firewalkers who walk barefoot on red-hot wooden coals depend on...
mind over matter
wood's poor conductivity
pure chance
magic
15. Multiple Choice
1 minute
1 pt
An object moving in a circle will continue in a circular motion when released.
True
False
16. Multiple Choice
1 minute
1 pt
Lakes and oceans are blue because they reflect the blue sky.
True
False
17. Multiple Choice
1 minute
1 pt
When you touch both a piece of metal and a piece of wood at the same time, the metal feels colder. This is because:
The metal is a few degrees cooler than the wood.
The metal is a better conductor of thermal energy than the wood.
The wood is a better conductor of thermal energy than the metal.
Your skin's thermal receptors can be easily fooled.
18. Multiple Choice
1 minute
1 pt
Sound travels faster in air than in water.
True
False
19. Multiple Choice
1 minute
1 pt
A man holding up a set of barbells is doing no mechanical work on them.
True
False
20. Multiple Choice
1 minute
1 pt
All physics experiments must be done using the scientific method.