Physics

Question 1

Sin 0°

Answer 1

0

Question 2

Sin 30°

Answer 2

1/2

Question 3

Sin 45°

Answer 3

(\/-2)/2

Question 4

Sin 60°

Answer 4

(\/-3)/2

Question 5

Sin 90°

Answer 5

1

Question 6

Sin 180°

Answer 6

O

Question 7

Cos 0°

Answer 7

1

Question 8

Cos 30°

Answer 8

(\/-3)/2

Question 9

Cos 45°

Answer 9

(\/-2)/2

Question 10

Cos 60°

Answer 10

1/2

Question 11

Cos 90°

Answer 11

O

Question 12

Cos 180°

Answer 12

-1

Question 13

Tan 45°

Answer 13

1

Question 14

Speed

Answer 14

Distance/time

Question 15

Acceleration

Answer 15

Velocity1time

Question 16

Overall velocity

Answer 16

Initial velocity v(o) + acceleration (time)

Question 17

Acceleration d1t gravity

Answer 17

9.8 m/s

Question 18

Force

Answer 18

Mass x acceleration; measured in Newtons (N)

Question 19

Weight

Answer 19

Mass x acceleration d/t gravity; also measured in Newtons (N)

Question 20

Normal force

Answer 20

The force perpendicular to the surface

Question 21

Friction force

Answer 21

The force parallel to the surface

Question 22

Distance

Answer 22

(Acceleration x time^2)/2

Question 23

Gravitational force

Answer 23

(G x mass1 x mass2) / r^2

where G is the gravitational constant (6.67x10^-11 Nm^2/kg^2) and r is the distance between their centers

Question 24

Translational equilibrium

Answer 24

The sum of forces pushing the object through space is counterbalanced by the sum of forces acting in the opposite direction.

Question 25

Torque

Answer 25

Radius x force x sin®

Counterclockwise is the positive direction and clockwise is the negative direction