PHYSICAL SCIENCE EXAM QUESTIONS. SAMPLE EXAM
REVISION PRACTICE QUESTIONS WITH CORRECT
ANSWERS (2024 UPDATE)
A student is a passenger in the front pf a moving car. Which object is the best frame of reference
for the student to determine how fast the car is moving relative to the ground? - ANSWER- a
signpost
Which time period shows the acceleration of the bicycle? - ANSWER- 8-10
A 200kg load is suspended from a cable on a crane. The load is moved upward at a constant
velocity 20 meters to the top of the building. What would be true of the force on the cable as it
moved upward? - ANSWER- the force on the cable remained the same
A student uses two identical balls to perform an investigation. The student throws ball A with a
horizon..... - ANSWER- the balls hit the ground at the same time
Two equal forces act at the same time on the same stationary object but in opposite directions.
Which statement describes the objects motion? - ANSWER- it does not move
If the student in cart A pulls the rope, what will result? - ANSWER- both carts will move toward
each other
Which statement best explains why the boat moved in the direction shown? - ANSWER- for
every action there is an equal and opposite reaction
, What happens to the kinetic energy and gravitational potential energy of a ball during free fall? -
ANSWER- potential energy increases and kinetic energy decreases
What causes the balloon to move? - ANSWER- action-reaction forces
In which example would the amount of work done equal zero? - ANSWER- holding a 1000N
rock over head
The SI unit of power is the - ANSWER- joule
A 750W motor might also be rated as a - ANSWER- 1 horsepower motor
Which model best illustrates Thompson's explanation of he atom? - ANSWER- pluses and
negatives
Ernest rutherford performed a famous..... - ANSWER- an atom is mostly empty space, with a
small, dense, positively charged center
Which best describes the current model of an atom? - ANSWER- a central nucleus with proton
neutrons and electrons orbiting in levels of high probability
Which distinguishes an atom of one element from an atom of a different element? - ANSWER-
the number of protons
How many protons are in an atom of bromine? - ANSWER- 35
Which diagram shows an electrically neutral atom? - ANSWER- equal
REVISION PRACTICE QUESTIONS WITH CORRECT
ANSWERS (2024 UPDATE)
A student is a passenger in the front pf a moving car. Which object is the best frame of reference
for the student to determine how fast the car is moving relative to the ground? - ANSWER- a
signpost
Which time period shows the acceleration of the bicycle? - ANSWER- 8-10
A 200kg load is suspended from a cable on a crane. The load is moved upward at a constant
velocity 20 meters to the top of the building. What would be true of the force on the cable as it
moved upward? - ANSWER- the force on the cable remained the same
A student uses two identical balls to perform an investigation. The student throws ball A with a
horizon..... - ANSWER- the balls hit the ground at the same time
Two equal forces act at the same time on the same stationary object but in opposite directions.
Which statement describes the objects motion? - ANSWER- it does not move
If the student in cart A pulls the rope, what will result? - ANSWER- both carts will move toward
each other
Which statement best explains why the boat moved in the direction shown? - ANSWER- for
every action there is an equal and opposite reaction
, What happens to the kinetic energy and gravitational potential energy of a ball during free fall? -
ANSWER- potential energy increases and kinetic energy decreases
What causes the balloon to move? - ANSWER- action-reaction forces
In which example would the amount of work done equal zero? - ANSWER- holding a 1000N
rock over head
The SI unit of power is the - ANSWER- joule
A 750W motor might also be rated as a - ANSWER- 1 horsepower motor
Which model best illustrates Thompson's explanation of he atom? - ANSWER- pluses and
negatives
Ernest rutherford performed a famous..... - ANSWER- an atom is mostly empty space, with a
small, dense, positively charged center
Which best describes the current model of an atom? - ANSWER- a central nucleus with proton
neutrons and electrons orbiting in levels of high probability
Which distinguishes an atom of one element from an atom of a different element? - ANSWER-
the number of protons
How many protons are in an atom of bromine? - ANSWER- 35
Which diagram shows an electrically neutral atom? - ANSWER- equal
