Duplicate of 3.1-3.3 Newton's Laws and Forces

Question 1

On an airplane, if Thrust is bigger than Drag and Weight is smaller than Lift, what happens?

Accepted Answer

A plane speeds up and climbs higher

Question 2

A person riding his bike skids to a stop at a stop sign. Which of the following accurately shows a FBD for the bike?

Accepted Answer

b

Question 3

What is another name for the force that always opposes the motion of an object?

Accepted Answer

Frictional Force

Question 4

A basketball in the air after being tossed up. Match the free body diagram.

Accepted Answer

d

Question 5

If forces are unbalanced (NOT equilibrium), then

Accepted Answer

Velocity is changing, acceleration is not zero

Question 6

A book rests on the table. Match the free body diagram.

Accepted Answer

a

Question 7

What is another name for the support force exerted by a surface on an object?

Accepted Answer

Normal Force

Question 8

An elevator travels upward at a constant velocity. Match the free body diagram.

Accepted Answer

a

Question 9

If forces are balanced (equilibrium), then

Accepted Answer

Velocity is constant, acceleration is zero

Question 10

What is another name for the amount of matter in an object?

Accepted Answer

Mass

Question 11

A person rides his bike at a constant velocity. Which of the following accurately shows a FBD for the bike?

Accepted Answer

d

Question 12

What units are used to measure force, mass, and acceleration?

Accepted Answer

N, kg, m/s2

Question 13

What is true about your mass and weight on the moon and earth?

Accepted Answer

Weight is less on the moon, but mass stays the same

Question 14

What is another name for the force of gravity acting on an object?

Accepted Answer

Weight

Questions 14