Chapter 10

Question 0

An example of constant acceleration is

Answer 0

Uniform circular motion

Question 1

What is the speed of a object at rest?

Answer 1

0 km/h

Question 2

The combination of all of the forces acting on an object is called the

Answer 2

Net force

Question 3

A force is continuously applied to an object, causing it to accelerate. After a period of time, however, the object stops accelerating. What conclusion can be drawn?

Answer 3

The object is experiencing some kind of friction

Question 4

When velocity changes by the same amount over each time interval, acceleration is

Answer 4

Constant

Question 5

In order to determine speed, you must know

Answer 5

Both time and distance

Question 6

The distance traveled by an object divided by the time it takes to travel that distance is called

Answer 6

Average speed

Question 7

Which straight-line acceleration indicates an increase in speed?

Answer 7

4 m/s2

Question 8

If the net force acting on a stationary object is zero, then the object will

Answer 8

Remain at rest

Question 9

When the velocity of an object changes, it is acted upon by an

Answer 9

Force

Question 10

The SI unit for acceleration is

Answer 10

m/s2

Question 11

Acceleration can mean

Answer 11

All of these

Question 12

What does it mean when a change in velocity is negative?

Answer 12

The object is slowing down

Question 13

When an object changes position relative to a reference point, the object is

Answer 13

In motion

Question 14

The friction between the air and the surface of a moving object is

Answer 14

Fluid friction

Question 15

Acceleration is defined as the change in velocity divided by

Answer 15

Time

Question 16

How can the friction on a water slide be reduced?

Answer 16

Run a constant stream of water down the slide

Question 17

Which of the following statements is true?

Answer 17

Frictional forces are greatest when both surfaces are rough

Question 18

Average speed can be represented by the mathematical expression

Answer 18

Distance/ time

Question 19

Friction is defined as

Answer 19

Force that opposes motion between two surfaces that are touching

Question 20

Which of the following speeds is the most accurate?

Answer 20

100 miles per second

Question 21

Which is an example of harmful friction?

Answer 21

Engine parts wearing down

Question 22

Which of these is constant during uniform circular motion?

Answer 22

Speed

Question 23

Displacement

Answer 23

All of these

Question 24

Which is not a way to reduce friction

Answer 24

Set a paperweight on notebook paper

Question 25

A tug-of-war that results in one team pulling the other across the line is an example of

Answer 25

In balanced forces

Question 26

Which is an example of balanced forces acting on an object?

Answer 26

A leaf lying on the grass

Question 27

Centripetal acceleration occurs because an object is

Answer 27

Changing direction

Question 28

Which of the following situations best demonstrates the effects of friction?

Answer 28

A parachute descending to the ground

Question 29

Which of the following is a displacement?

Answer 29

3 miles north

Question 30

If the net force on an object is zero then the object has

Answer 30

Balanced forces

Question 31

Displacement must always indicate

Answer 31

Direction

Question 32

Which of the following does not indicate velocity?

Answer 32

28 km from Los Angeles to Catalina island

Question 33

On a bus traveling south at 15.0 m/s, a child walks south at 2.5 m/sec. What is the child's resultant velocity?

Answer 33

17.5 m/s south

Question 34

Which of the following best illustrates balanced forces?

Answer 34

A stretched rubber band being held between two hands

Question 35

In order to increase a cars speed, the force pushing it forward must be

Answer 35

Greater than the force of friction

Question 36

An object experiencing balanced forces

Answer 36

Has a net force of zero

Question 37

The______ of an object consists of it's speed and direction

Answer 37

Velocity

Question 38

Which is an example of static friction?

Answer 38

Pushing a box that is at rest

Question 39

Force is a quantity made up of

Answer 39

Magnitude and direction

Question 40

The difference between speed and velocity is that velocity includes

Answer 40

Direction

Question 41

Net force is

Answer 41

The combination of all forces acting on an object

Question 42

Which is an example of kinetic friction?

Answer 42

Friction between a cars windshield and the air as you drive into the wind