Newtons Law Flashcards
A released balloon flies across the room. The balloon slows down as the forces become-
Balanced
A motorcycle traveling 35 mi/hr slows as it approaches a stop sign. This is an example of
Velocity
A hiker walks 20 miles in 8 hours.
Is this an example of speed,velocity,or acceleration
Speed
A bike racer travels 17mi/hr in a southerly direction. This is an example of
Velocity
The net force of balanced force pairs is
Zero
What force is necessary to accelerate a 1,250 kg car at a rate of 40m/s2
31.25
An object is being pushed 30 n to the left and 50 N to the right
What is the net force acting on the object
Are the forces balanced or unbalanced
20 N to the Right
Unbalanced
How does Newton’s first law of motion apply to a ball rolling across the gym floor after an unbalanced force is applied
The ball will continue to roll until an unbalanced force is applied.
What is the unit used to measure Force
Newtons
The law requires all people riding in a car to wear seat belts. In the car suddenly stops, the seat belts hold the passengers in place. How does Newton’s first law if motion apply when a person is not wearing a seat belt.
The passengers will continue moving forward due to inertia
When the air is released from a balloon, the air moves out one end and the balloon moves in the other direction. Which statement does this situation best illustrate?
For every action there is a reaction
An elevator slow to a stop
What is this an example of ? (Speed,velocity, Acceleration)
Acceleration
Which swing results in the greatest acceleration of the ball
Swing A :20 N
Swing B : 10 N
Swing C : 5 N
Swing A
How much force is needed to accelerate a 3 kg toy car at a rate of 1.5 m/s2
F= 3kg x 1.5m/s2
A child jumps on a trampoline. Which of the following causes the child to rise in the air?
A reaction force
