1. Which physical fitness principle refers to how often an exercise should be done?
A. frequency
B. intensity
C. time
D. type

2. What dual sports is played through volleying shuttlecock overr a net using a racket?
A. table tennis
B. badminton
C. lawn tennis
D. volleyball

3. Which badminton grip is also called as "handshake"?
A. forehand grip
B. backhand grip
C. smash
D. lob

4. How should a shuttlecock be served
A. diagonally
B. vertically
C. horizontally
D. all of the above​