n. power, energy, or physical strength
force
v. to use force to move something ahead
push
v. to use force to move something toward yourself
pull
n. a seat hung from ropes or chains on which one sits and moves back and forth for pleasure
swing
adv. in the direction in front of you
forward
adv. in the direction behind you
backward
v. to turn around in circles
spin
v. to fall to the ground
fall over
v. to be in a steady position without falling to one side or the other
balance
v. to become joined or linked
connect
n. the force that makes movement difficult when two things rub against each other
friction
v. to move yourself or something in a direction
lean
n. the way that something or someone is going
direction
prep. moving or facing in the direction of
toward
n. the force that makes things fall toward the earth
gravity
adj. having a sharp slope
steep
