Midterm Exam Review (Last one)

During which interval is the object's velocity constant?

• A to B

• B to C

• D to E

• F to G

According to the graph, what is the total displacement of the person after 5 seconds?

• 5 m

• 10 m

• 15 m

• 20 m

What is inertia?

• The resistance of any physical object to any change in its state of motion
• The amount of mass an object has
• A reaction in an object
• No one knows

Which law of motion is also known as the Law of Acceleration?

• 1st law
• 2nd law
• 3rd law
• 4th law

What is the SI unit used to measure force?

• pounds
• grams
• newtons
• kg/ m2

The force that gives objects weight is known as

• Mass

• Weight

• Distance

• Acceleration

The factor by which a machine increases the applied force is called the

• efficiency.

• velocity ratio.

• output force.

• mechanical advantage

What is the form of energy that is transferred between objects due to a temperature difference?

• thermal energy

• electrical energy

• mechanical energy

• nuclear energy

Near the ceiling of a room the air is warmer. The warm air rises because of ...

• Conduction
• Radiation
• Convection

What is the formula to calculate heat energy required to raise the temperature of any substance?

• Q=mc∆t
• Q=mc
• Q= ½mv
• m=QC