Physics - Semester 1 Final Review

Question 1

If something has a mass of 1 kg on the moon, what is it's mass on Earth?

Accepted Answer

1 kg

Question 2

If D represents an applied force of someone pushing an object across a table, what is B?

Accepted Answer

Friction

Question 3

A ball on Earth is thrown up to 12.5 meters before coming down again. What are the "givens"?

Accepted Answer

height, gravity, final velocity

Question 4

Accuracy is the:

Accepted Answer

extent to which a measured value agrees with a standard unit

Question 5

Power is...

Accepted Answer

rate of doing work

Question 6

The picture shows

Accepted Answer

low accuracy, high precision

Question 7

How many meters are in a kilometer?

Accepted Answer

1000

Question 8

What is 0.00325 in scientific notation?

Accepted Answer

3.25 x 10-3

Question 9

Mechanical Energy is...

Accepted Answer

Potential Energy + Kinetic Energy

Question 10

A 10 N force pushes rightward on a box. A 20 N force pushes leftward. What's the net force?

Accepted Answer

10

Question 11

A book is pushed across a table. How many forces are acting on it?

Accepted Answer

4

Question 12

A moving object requires added energy to keep moving. (no friction or air resistance)

Accepted Answer

False

Question 13

Which variable is used for BOTH horizontal and vertical movement?

Accepted Answer

time

Question 14

If you roll a ball off a table, the horizontal component of the projectile motion will...

Accepted Answer

remain constant

Question 15

If you shoot a cannonball, and drop another (same height, no air resistance), which lands 1st?

Accepted Answer

they land at the same time

Question 16

What are the SI units for displacement?

Accepted Answer

m

Question 17

If D represents an applied force of someone pushing an object across a table, what is A?

Accepted Answer

Normal Force

Question 18

Potential energy...

Accepted Answer

depends on an objects position (height)

Question 19

What is the magnitude of acceleration for gravity on Earth?

Accepted Answer

9.8 m/s2

Question 20

There are 2 objects with equal mass, but one is going twice as fast. Kinetic energy...

Accepted Answer

is quadrupled in the faster object

Questions 20