1. Which of the tables below correctly shows vector and scalar quantities?
Scalars
Vectors
A.
speed
acceleration, displacement
B.
speed, displacement
acceleration
C.
acceleration
speed, displacement
D.
displacement
speed, acceleration
2. the equation of motion v=u+at can only be applied to a body if certain conditions are met. Which of these is NOT one of these conditions?
A. The net force is constant
B. The acceleration is constant
C. There is only one force acting on the body
D. The acceleration is linear
3. When a sky diver is falling at terminal velocity
A. The air resistance is at a minimum value
B. There is no resultant force on the skydiver
C. The force of gravity is at a maximum value
D. The resultant force is still downwards
4. A school bus accelerates from rest at a constant rate and then quickly reaches terminal velocity. Which of these graphs show this motion correctly?
5. A rock is thrown upwards at an angle. It initially has a horizontal velocity of 4 ms-1 and a vertical velocity of 3 ms-1 . The initial velocity is
A. 3 ms-1
B. 4 ms-1
C. 5 ms-1
D. 7 ms-1
6. this graph shows a car approaching a traffic light. Which answer correctly states the total distance travelled and the decceleration of the car?
A. Distance = 40m, deceleration = 0.8 ms-2.
B. Distance = 40m, deceleration = 1.25 ms-2.
C. Distance = 30m, deceleration = 1.25 ms-2.
D. Distance = 30m, deceleration = 0.8 ms-2.
7. Two of Newton's famous laws of motion are ..
statement X: "Action and reaction are equal and opposite."
Statement Y: " An object will continue to travel in a straight line at constant velocity unless acted on by a force."
Which of Newtons Laws are these?
A. X is the 1st law, Y is the 2nd law.
B. X is the 2nd law, Y is the 3rd law.
C. X is the 3rd law, Y is the 1st law.
D. X is the 1st law, Y is the 3rd law.
8. A remote controlled car is switched on and accelerates from rest. Which of these 4 free body diagrams correctly shows the relative sizes of the forces acting on the car?
9. which of these expressions is the 'rate of change of momentum?
A. Δp
B. m/t
C. Δm/t
D. Δp/Δt
10. One of newtons laws states that the rate of change of momentum is equal to .. which quantity?
A. Acceleration
B. Force
C. Mass
D. velocity
11. Two stones are thrown from a building with identical speeds as shown. Which statements are true?
Time to reach ground
Impact speed
A.
A is first to hit
A has the largest speed
B.
B is first to hit
B has the largest speed
C.
A is first to hit
B has the largest speed
D.
B is first to hit
Both velocities are identical
12. Momentum is defined as ..
A. the product of mass and velocity
B. the force required to stop an 1kg object travelling at 1ms-1
C. the speed of an object multiplied by its mass in kg
D. the rate of change of force
13. The graph shows the force required to stetch a steel cable. What work has been done?
A. 240 J
B. 120 J
C. 2.4 J
D. 1.2 J
14. An inelastic collision is one in which..
A. the final velocity is less than the impact velocity
B. momentum is not conserved
C. kinetic energy is not conserved
D. the final average velocity is less than the initial average velocity
15. The gravitational field strength on Mars is approximately 4 Nkg-1. What is the mass of a rock of weight 100N?
