Transcript Hewitt NTQs, Chapter 4

Galileo is credited with being the first
to identify the concept of inertia and
the first to develop the concept of
acceleration. And like others, he
discussed forces. But he didn’t
connect these basic concepts.
Which law of Newton makes
the connection that Galileo
missed?
1.
2.
3.
4.
First Law of Motion
Second Law of Motion
Third Law of Motion
Law of Universal Gravitation
Galileo is credited with being the first
to identify the concept of inertia and
the first to develop the concept of
acceleration. And like others, he
discussed forces. But he didn’t
connect these basic concepts.
Which law of Newton makes
the connection that Galileo
missed?
1. First Law of Motion
2. Second Law of Motion
3. Third Law of Motion
4. Law of Universal Gravitation
Two identical spring-loaded dart guns
are simultaneously fired straight
downward. One fires a regular dart;
the other a weighted dart.
Which dart hits the ground first?
1. The regular dart.
2. The weighted dart.
3. It’s a tie.
Two identical spring-loaded dart guns
are simultaneously fired straight
downward. One fires a regular dart;
the other a weighted dart.
Which dart hits the ground first?
1. The regular dart.
2. The weighted dart.
3. It’s a tie.
In both cases an applied force of
100 N accelerates the 100-N block.
In which case is the acceleration
greater?
1.
2.
In both cases an applied force of
100 N accelerates the 100-N block.
In which case is the acceleration
greater?
1.
2.
Which encounters
the greater force
of air resistance—
1. A falling
elephant, or
2. A falling
feather?
Which encounters
the greater force
of air resistance—
1. A falling
elephant, or
2. A falling
feather?
Two smooth balls of
exactly the same size,
one made of wood and
the other of iron, are
dropped from a high
building to the ground
below. The ball to
encounter the greater
force of air resistance
on the way down is
1. the wooden ball.
2. the iron ball.
3. Neither. The force is
the same.
Two smooth balls of
exactly the same size,
one made of wood and
the other of iron, are
dropped from a high
building to the ground
below. The ball to
encounter the greater
force of air resistance
on the way down is
1. the wooden ball.
2. the iron ball.
3. Neither. The force is
the same.
As she falls faster and faster
through the air, her acceleration
1. increases.
2. decreases.
3. remains
the same.
As she falls faster and faster
through the air, her acceleration
1. increases.
2. decreases.
3. remains
the same.