Question

25. How do simple machines make work easier?

a
by reducing the amount of force required
b
by reducing the amount of energy required
c
by shortening the distance required


26. If Mr. Jones was moved from Earth to the moon, what would change?

a
weight
b
mass
c
height
d
hair color


27. Which of the following has the greatest potential energy?

a
a 15 kg cat at underneath the tree
b
a 5 kg squirrel in the middle of the tree trunk
c
a 10 kg eagle's nest full of eggs at the top of a tree
d
a 10 kg bird below the squirrel


28. The faster an object moves the _____________ kinetic energy it has.

a
more
b
less
c
same
d
not enough information


29. A(n) is created by passing current through a coil of wire wrapped about an iron core.

a
permanent magnet
b
motor
c
electromagnet
d
generator

Answer 1

Here are the answers to the questions provided:

25. How do simple machines make work easier?
- **a** by reducing the amount of force required

26. If Mr. Jones was moved from Earth to the moon, what would change?
- **a** weight

27. Which of the following has the greatest potential energy?
- **c** a 10 kg eagle's nest full of eggs at the top of a tree

28. The faster an object moves the _____________ kinetic energy it has.
- **a** more

29. A(n) is created by passing current through a coil of wire wrapped about an iron core.
- **c** electromagnet