Force Tests Flashcards
4.An object in motion with no unbalanced forces acting on it will
Continue to move in its path at a constant speed
Concept 3 notes unit 6
- The relationship among mass,force,and acceleration is explained by
Newtons 2nd law of motion
Unit 6 concept 3 notes
7.For any object, the greater the force that’s applied to it,the greater its ___ will be
Acceleration
Unit 6 concept 2 notes
- An astronaut is planning a trip to a newly discovered orange. According to the law of universal Gravitation, the astronauts weight will be greater than his weight on earth if
The new planet has more gravity than earth
Unit 6 concept 3
- A baseball player swings his bat and misses the ball but hits a fly that was hovering over home plate. The acceleration of the fly compared to what the acceleration of the ball would have been with the same force applied to it would be
Larger
Unit 6 concept 2 notes
- Which statement below is false
Weight is a constant no matter where you are located
Unit 6 concept 3 notes
- When two forces on the same object are equal and opposite, theses forces are called ___ forces
Balanced
Unit 6 concept 3 notes
- What is the weight of the box in the picture to the right?
245N
Unit 6 concept 3
- Consider a watermelon that started from rest and is dropped straight down from a tall building. Air resistance can be ignored.which statement about the watermelon motion is false
the watermelon falls with a constant velocity
Unit 6 concept 3 notes
- A student drops a feather and a rock at the same time from Mrs Taylor’s window. If air resistance wasn’t a factor, what should she observe
The rock and the feather fall at the same rate .
Unit 6 concept 3
24.in the picture to the right, if the card were quickly pulled off the cup like the arrow suggests, what property would explain why the coin falls into the cup rather than moving with the card.
Inertia
Unit 6 concept 3
- An object will move at a constant velocity unless an unbalanced force acts upon it
Newton’s 1st law
Unit 6 concept 3
- Tendency of an object to resists changes in motion
Inertia
Unit 6 concept 3 notes
- The attraction any toe objects have on one another
Gravity
Unit 6 concept 3 notes
- A net force acting on an object causes the object to accelerate in the direction of the net force.
Newtons 2nd law
Unit 6 concept 3 notes
- Related to the amount of force needed to change an objects motion
Momentum
Unit 6 concept 3 notes
- Why does someone mot wearing a seatbelt in a car fly forward when the car stops suddenly? Make sure to include which law explains this.
Because objects in motion resists a change in motion due to inertia. Newtons 1st law
Unit 6 concept 3 notes
- Why does it take more effort to make a bowling ball accelerate 25 m/s than to make a tennis ball accelerate 25 m/s. Include what law explains this
The bowling ball has more mass and a tennis bball is very light. Newtons 2nd law
Unit 6 concept 3
36.Rank the following object from least inertia to most inertia
Truck, science textbook, pencil
Unit 6 concept 3
- A. What would be the speed of the falling skydiver after 5 seconds
49 m/s
Unit 6 concept 3
- B. What speed will the skydiver eventually reach? What is the speed called?
55m/s terminal velocity
Unit 6 concept 3 notes
- C. Why does this occur?
Gravity and air resistance
Unit 6 concept 3 notes
