Unit 1 Questions
An object moves at a constant speed of 6m/s. This means that the object:
Moves 6 meters every second
A ball is thrown straight up from point A, reaches a maximum height at point B, and then falls back to point C. What is true about the direction the ball's velocity and acceleration between point A and B?
v⬆️ a⬇️
A ball is thrown straight up from point A, reaches a maximum height at point B, and then falls back to point C. What is true about the direction the ball's velocity and acceleration between point B and C?
v⬇️ a⬇️
A race car moving west beings to slow down after crossing a finish line. What is the correct direction of the car's acceleration?
➡️
A truck travels east with an increasing velocity. What is the correct direction of the car's acceleration?
➡️
A motorbike travels east and beings to slow down before a traffic light. What is the correct direction of the motorbike's acceleration?
⬅️
A car and a delivery truck both start from resort and accelerate at the same rate. However, the car accelerates for twice the amount of time as the truck. What is the distance of the car compared to the truck?
Four times as much
An archer is practicing with an arrow bow shoots an arrow straight up two times. The first time the initial speed is v0 and the second time he increases the initial speed to 4v0. How would you compare the maximum height in the second trial to that in the first trial?
Four times greater
An object is released from rest and falls in the absence of air resistance. What is true about its motion?
It's acceleration is constant
A ball is thrown straight up from point A, reaches a maximum height at point B, and then falls back to point C. What is true about the direction the ball's velocity and acceleration the highest point B?
It's velocity is zero and acceleration is down and non-zero constant
An object moves with a constant acceleration of 5m/s^2. That means the object:
The object's velocity increases by 5m/s each second
A package is dropped from an air balloon two times. In the first trial distance between the balloon and the surface is H and in the second trial 4H. Compare the time it takes for the package to reach the surface in the second trial to that in the first trial?
The time in the second trial is four times greater
A football, hockey puck and tennis ball all fall down in the absence of air resistance. What is true about their acceleration?
They all fall down with the same constant acceleration
A tennis ball is dropped from the top of a tall building. A second tennis ball is thrown down from the same building. What is true about the acceleration of each tennis ball.
They both fall with the same acceleration because they are in free fall
Two baseballs are thrown from the roof of a house with the same initial speed, one is thrown up, and the other down. Compare the speeds of the baseballs just before they hit the ground
They both move with the same speed
A car and a delivery truck both start from resort and accelerate at the same rate. However, the car accelerates for twice the amount of time as the truck. What is the final speed of the car compared to the truck?
Twice as much
A modern car can develop an acceleration four times greater than an antique car. If they accelerate over the same distance, what would be the velocity of the modern car compared to the antique car?
Twice as much
Name a vector quantity
Velocity and displacement