Question

multiple answer 3 points
imagine a playground where children are playing with various toys that involve forces, such as a soccer ball, a swing, a seesaw, and a frisbee.
check all the statements that accurately describe the forces acting on objects in the playground. select all that apply.
the swing moving back and forth experiences gravity pulling it downwards.
the seesaw remains balanced when two children of equal weight sit on opposite ends due to equal and opposite applied forces.
the child pushing another child on the swing is applying an applied force that begins the swings motion.
the soccer ball rolling across the grass experiences friction that keeps it rolling.
the frisbee flying through the air experiences no forces acting on it until it is caught.

Explanation:

• The swing moving back and forth: Gravity is a force acting on it, pulling it downwards.
• The seesaw remaining balanced when two children of equal weight sit on opposite ends: Equal and opposite applied forces (weights of children) result in balance.
• The child pushing another child on the swing: An applied force that begins the swing's motion.
• The soccer ball rolling across the grass: Friction acts on it (but it's the friction that slows it down, not keeps it rolling. So this statement is incorrect).
• The frisbee flying through the air: Gravity and air resistance (forces) act on it until it is caught. So the statement that it experiences no forces until caught is incorrect.

Answer:

• The swing moving back and forth experiences gravity pulling it downwards.
• The seesaw remains balanced when two children of equal weight sit on opposite ends due to equal and opposite applied forces.
• The child pushing another child on the swing is applying an applied force that begins the swing's motion.