What is required for two forces to be balanced?(1 point)

Question

Responses

They must be equal in strength and acting in opposite directions.
They must be equal in strength and acting in opposite directions.

They must be equal in strength and acting in the same direction.
They must be equal in strength and acting in the same direction.

They must be unequal in strength and acting in the same direction.
They must be unequal in strength and acting in the same direction.

They must be unequal in strength and acting in opposite directions.
They must be unequal in strength and acting in opposite directions.

What forces always change the motion of an object?(1 point)
Responses

balanced
balanced

contact
contact

unbalanced
unbalanced

non-contact

Kevin uses a golf club to hit a ball. What transfer of momentum takes place as a result of the ball being hit?(1 point)
Responses

Momentum is transferred from the golfer’s hand to the ball.
Momentum is transferred from the golfer’s hand to the ball.

Momentum is transferred from the golf club to the ball.
Momentum is transferred from the golf club to the ball.

Momentum is transferred from the ball to the golf club.
Momentum is transferred from the ball to the golf club.

No momentum is transferred in this system.

A 1-kilogram mouse walks across a road at a velocity of 0.01 m/sec
. What is the mouse’s momentum?(1 point)
Responses

1 kg⋅m/s
1 kg⋅m/s

100 kg⋅m/s
100 kg⋅m/s

10 kg⋅m/s
10 kg⋅m/s

0.01 kg⋅m/s

Answer 1

Here are the correct answers to your questions:

1. What is required for two forces to be balanced?

   • They must be equal in strength and acting in opposite directions.

2. What forces always change the motion of an object?

   • Unbalanced forces always change the motion of an object.

3. Kevin uses a golf club to hit a ball. What transfer of momentum takes place as a result of the ball being hit?

   • Momentum is transferred from the golf club to the ball.

4. A 1-kilogram mouse walks across a road at a velocity of 0.01 m/sec. What is the mouse’s momentum?

   • 0.01 kg⋅m/s
   • (Momentum is calculated using the formula: momentum = mass × velocity; thus, 1 kg × 0.01 m/s = 0.01 kg⋅m/s.)