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G8 Sci Semester 2 Revision (23-24)
Quiz by Doey Nguyen
Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
What is a reference point?
If the force of one side is stronger than the other side. What type of force is this?
be applied only when one object actually touches another. What type of force is this?
What is the net force?
What is a net force?
Which direction of the net force?
A boy pulls a wagon with a force of 6 N east as another boy pushes it with a force of 4 N east. What is the net force?
You are sitting still in a classroom and looking over the window, there are many cars moving past you. Who is in motion?
A contact force that two surfaces exert on each other when they rub against each other.
A force that pulls objects toward each other as a result of their masses.
When the forces on an object are unbalanced, there is a _______ net force acting on the object.
A car advertisement states that a certain car can accelerate from rest to 70 m/s in 7 seconds. Find the car's average acceleration.
The airplane moving down a runway, preparing for takeoff --> initial speed is 0 m/s and final speed is 24 m/s, time: 3 second. What is the plane's acceleration?
What does a negative value for acceleration mean?
A ball is pushed from a stop and rolls 6m in 2s. Student A says the average speed of the ball is 3 m/s. Student B says the average speed is 1.5 m/s2. Which student is correct?
A student graphed distance versus time for an object that moves 14 m every 2s. What is the slope of the line on the graph?Â
The ________ of an object is the distance the object moves per unit of time
_____Â tells how one variable changes in relation to the order variable in the graph
The speed at which an object travels in a given direction.
The rate at which velocity changes.
When an object accelerates, it increases _______.
A decrease in speed is called ________
What is the speed of a jet plane that travels 528 meters in 4 seconds?
After an impact involving a non-functioning satellite, a paint chip leaves the surface of the satellite at a speed of 96 m/s. After 17 seconds, how far has the chip landed?
The space shuttle releases a space telescope into orbit around the earth. The telescope goes from being stationary to traveling at a speed of 1700 m/s in 25 secs. What is the acceleration of the satellite?
For each scenario, decide if this is an example of Newton's 1st, 2nd, or 3rd law of motion.
A coin put on top of a paper on the table will stay in place when the paper is pulled.
For each scenario, decide if this is an example of Newton's 1st, 2nd, or 3rd law of motion.
A farmer could not move his cart full of vegetables with only one horse, so he added another horse in order to move the cart.
For each scenario, decide if this is an example of Newton's 1st, 2nd, or 3rd law of motion.
A truck with less mass will have a bigger acceleration than a truck with more mass.
For each scenario, decide if this is an example of Newton's 1st, 2nd, or 3rd law of motion.
Daddy hit the golf ball with more force than little Johnny. Daddy's ball went the farthest.
For each scenario, decide if this is an example of Newton's 1st, 2nd, or 3rd law of motion.
When a basketball player shoots a jump shot, the ball follows an arcing path because of gravity and friction.
For each scenario, decide if this is an example of Newton's 1st, 2nd, or 3rd law of motion.
The harder you pedal your bicycle, the faster your bicycle will go.
For each scenario, decide if this is an example of Newton's 1st, 2nd or 3rd law of motion.
A book is resting on the table exerts a downward force on the table while the table exerts an upward force on the book.
For each scenario, decide if this is an example of Newton's 1st, 2nd or 3rd law of motion.
The large snowball was much harder to move than the smaller one.
For each scenario, decide if this is an example of Newton's 1st, 2nd or 3rd law of motion.
A ball that rolls on a flat surface will continue to roll until friction brings the ball to a stop.
A student pushes a hollow ball with a small amount of force causing it to roll quickly across the room. The student then pushes a solid ball with the same amount of force. Which statement demonstrates an understanding of force and its e ects on an object?
The picture shows a student pulling on a rope that is attached to a wall. Which statement correctly describes the amount of force applied by the wall as the student continues to apply a 250-newton force?
A ball is dropped from the top of a tall building. As the ball falls, the upward force of air resistance becomes equal to the downward pull of gravity. When these two forces become equal in magnitude, the ball will ____.
Four forces are acting on a box, as shown. This box will increase in speed
A driver starts her car and steps on the gas pedal. The car gradually accelerates to 50 km/hr. A few minutes later, the driver suddenly slams on the brakes to avoid hitting a box in the road. As the car comes to a stop, the driver's body appears to lurch forward in the seat until it is restrained by the seat belt. What law best explains why the driver's body appears to lurch forward when the brakes are suddenly applied?
What is Newton's First Law
Because of inertia, a resting object ________.
Newton's second law of motion states that an unbalanced force is equal to mass times:
As more unbalanced force is applied to an object, its acceleration:
What explains a quantity that has BOTH speed and direction?
The force that prevents a ball rolling on the ground from continuing on it's path forever is...
The reason a ball bounces up when it hits the ground.
What explains why objects resist changes in their state of motion?
You are traveling in a car in a straight line. The driver puts on the brakes and you keep moving forward due to inertia. Which of Newton's Laws does this demonstrate?
You kick a basketball and a tennis ball away from you with an equal amount of force. The tennis ball has less mass and therefore a greater acceleration. Which of Newton's Laws does this demonstrate?
You push your feet against the pool wall and kick off. The backward push propels you forward through the water. Which of Newton's Laws does this demonstrate?
Which Newton's Law says if object A exerts a force on object B, then object B exerts the same force on object A? (Also known as the action/reaction law)
Which force always works in the opposite direction to motion?
_____ are two forces acting in opposite directions on an object, and equal in size. Choose the best answer.
_____ are forces that produce a nonzero net force, which changes an object's motion.
A skater pushes another skater forward, but the one pushing moves backwards.
You push against a wall and the wall is pushing back on you.
You are carrying a lunch tray when you bump into the edge of a table. Although the tray did not tip, your milk falls off of the front of the tray. Which Newton's Law is this? (Just write down numbers)
